HP Forum Archive 18 Message Index

The Museum of HP Calculators

HP Forum Archive 18

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This is an archive of the HP forum, which is for discussion of HP calculators including usage, repairs, sources of replacement parts, general information etc.

Message Index

All Messages

(Compressed "Threads Only" Listing)

HP 49G+ stopped working. Please Help, Anthony 2 responses
OT: My favorite HP non-calculator toy: HP4500, Michael Meyer 0 responses
HP-65 replacement labels?, GanjaTron 2 responses
HP-25 fails to store programming steps, Alberto Fenini 10 responses
12c delete last digit, robert arbon 2 responses
STO+ STO- STO/ backward behavior on HP50g, David Hayden 4 responses
Saturday Night Live skit about some of us, Mad Dog ebaycalcnut 16 responses
Missing Addresses for HP Calc Calendar Recipients - Can You Help? , Jake Schwartz 0 responses
HP 9825s rebuild, mark murphy 2 responses
The Oldest Hewlett-Packard IC,s never die. (Two), julio garcia (spain) 6 responses
Mini Challenge, Egan Ford 13 responses
HP 75 HPILCMDS, RamLab 0 responses
HP32SII function?, Wolfgang K. Meister 3 responses
Graphing Calculators and education, bill platt 39 responses
HP SmartCalc 300s - How deep...?, Joerg Woerner 10 responses
Yowser! the 2009 HP Calendar has arrived!, hugh steers 3 responses
Mathematical problem, Matthias Wehrli 9 responses
OT: uwatch featured on today's Hack-a-Day!, Ren 3 responses
Which HP48 to buy for ROM upload, Silvio deMorais 3 responses
N00P question - how to clear NoV64, PeterP 2 responses
HP 18C language?, icebox 3 responses
Hp 48GX Screen, all4abuck 2 responses
HP 10B - One row of keys unresponsive, Bastian 1 response
x^2 - N*y^2 = 1 (12C), Gerson W. Barbosa 31 responses
HP Manual Scans for DVD Version 7, Allen 10 responses
Problem with my 48gx, Tom Rocks, SC 3 responses
i41CX MOD loading question, Miki Mihajlovic 5 responses
And another 12c mini-challenge (phi), Paul Dale 16 responses
accuracy benchmarks for financial calculations, Kim Hansen 6 responses
Call for HP71 emulation for iPhone - JFG et al?, PeterP 4 responses
HHC2008 Conference Video Available, Jake Schwartz 2 responses
HP50G...should I upgrade?, Ryan McLean 20 responses
HP 28s display problem, Fred Herring 2 responses
More x^y y^x fun., Egan Ford 13 responses
GNU Emacs Calculator, Thomas Klemm 0 responses
How to clean the buttons on HP 48G?, Denizen 2 responses
HP 50G or HP 48GX?, Denizen 13 responses
Tape Drive copy to PC with 71B IL/RS232., Raymund Heuvel 1 response
HP 35s and Cosine of large numbers, Chuck 6 responses
hp42 Minehunt, Nacho 2 responses
The oldest Hewlwtt-Packard IC,s never die., julio garcia (spain) 0 responses
A reversed numbering scheme of the HP48's RPN stack, Khanh-Dang Nguyen Thu-Lam 0 responses
HP 97 printer repair manual need, ZOleg 3 responses
another math curiousity, Don Shepherd 13 responses
HP48Gii SWAP, V Green 6 responses
New Icon, Arnaud Amiel 4 responses
HHC Year-2009 HP Calculator Calendar Is Now Available, Jake Schwartz 1 response
Free42 Port of HP-42S for iPhone now available, Steve Simpkin 8 responses
HP 48G repair, Denizen 7 responses
hp 41 c error, Mark Vandemeulebroucke 1 response
Super Brains in XXL, Peter A. Gebhardt 0 responses
How to find a new HP12C+?, Scott Newell 0 responses
Farey Sequence, Thomas Klemm 2 responses
Yet another 12C mini-challenge (pi), Gerson W. Barbosa 31 responses
HP48Gii Decimal Conversion, v green 3 responses
Programming a clock exercise, mike reed 4 responses
Some hoorays for the slide rule, Palmer O. Hanson, Jr. 48 responses
More HP Manual Scans wanted!, Dave Hicks 11 responses
TI-83 Plus vs. HP 20B, HP 35S, HP 40G, Joerg Woerner 8 responses
2009 HHC HP Calendar To Be Ready Next Week, Jake Schwartz 1 response
HP35s one-ups the TI-84..., Chuck 2 responses
HP-41 (limited) available for iPhone *FREE*, Steve Simpkin 9 responses
HP 48GX - how to check available memory port 2, amberasia 2 responses
Size of Flash memory in 50g ???, Klaus Boehme 4 responses
HP-35 Version 1 Red Dot, Michael de Estrada 3 responses
HP 20b logarithm error, Michael Andersson 13 responses
HP-41 Card Reader NOT gummy wheel problem, Rich Forest 19 responses
[POT]Another record to be broken..., Olivier TREGER 7 responses
10C Gamma and other holiday surprises., Egan Ford 8 responses
[OT]Web site updated, Olivier TREGER 7 responses
EMU41 and printing on Networked Laserjet Printer, Prabhu Bhooplapur 0 responses
Happy 2009!, Walter B 4 responses
OT: Sharp PC-1280, Saile (Brazil) 11 responses
OT: The Fifteen Puzzle book, Don Shepherd 0 responses
2009 To Celebrate 30 Years Since the HP41C Was Released, Namir 24 responses
MLDL2000 new firmware and software, Meindert Kuipers 1 response
L 119, jouenne 1 response
New connectivity for ISA card via USB, Stephan (Switzerland) 5 responses
Imposing dimensional consistency, Palmer O. Hanson, Jr. 3 responses
OFF topic, lets see photos of your winter where you live!, Geoff Quickfall 9 responses
HP 20b: and ANS (or CHS and LASTx), Karl Schneider 2 responses
HP 20b: +/- and ANS (or CHS and LASTx), Thomas Klemm 2 responses
An old logrithm algorithm, Palmer O. Hanson, Jr. 8 responses
question on 12c programming, Don Shepherd 2 responses
OT: Casio Tape Utilities, Marcus von Cube, Germany 0 responses
Kinda Christmas present: Mutiple danish magazines about HP calculators, Johnny Bjoern Rasmussen 2 responses
Merry X-Mas: ICEBOX.ROM version 1D, Geir Isene 1 response
OT: Touch Panel Calculator, DaveJ 11 responses
Happy Xmas days and an even happier New Year!, Raymond Del Tondo 46 responses
hp 41 cv manuals, Michael De Rosa 2 responses
HPCC Datafile Issue V27N6 Hits A Homerun, Jake Schwartz 5 responses
iPod Touch/iPhone HP Emulators/Simulators, Kevin Kitts 4 responses
Crimson Research (freeware) Voyager emulators removed from iTunes App Store., Pal G. 8 responses
Favorites, Geir Isene 18 responses
Challenge: Mirror bits, Geir Isene 27 responses
Discoverd interesting feature in HP-71B BASIC, Namir 9 responses
Help needed (O.T.), Palmer O. Hanson, Jr. 0 responses
New Casio calculator, Bruce Bergman 5 responses
Factoring Integer into Primes: HP 48GX, John Ferman 8 responses
WHATS YOUR FAVORITE NON- HP CACULATOR, Howard Lazerson 32 responses
What's your favorite non-programmable HP calculator?, Jeff Kearns 33 responses
A small challenge, Paul Dale 7 responses
Antikythera computer (a little bit OT), Walter B 8 responses
Calculator, meet Leadholder (drafting pencil), bill platt 1 response
hp 25 calculator, Tom Harding 1 response
HP 15c key assignment, Survey Matt 25 responses
How is Valentin Albillo, KC 6 responses
x49gp (aka 50g with ARM emulation) Quick Start Guide, Egan Ford 0 responses
One More HP-67 Program, Stefan Vorkoetter 1 response
HELP!!! Fixing HP28S (Battery Drain), lsegovic 10 responses
HP 41C strange model, Damien MATTEI 4 responses
Free42 port to iPhone looking AMAZING!, Les Wright 30 responses
OT: FORTH on the Sharp PC-1500, Bill (Smithville, NJ) 4 responses
15C Help, Christopher Treen 9 responses
mental challenge, Don Shepherd 20 responses
A minor tool for the arsenal., Paul Brogger 1 response
HP 97 printer slipping paper, paolo gramigna 1 response
(OT) Message to Klaus, Bill (Smithville, NJ) 3 responses
ICEBOX.ROM (NOV tool), Geir Isene 5 responses
HP Solve calculator newsletter, Matt Kernal 24 responses
NoV64 and Sandbox (and posible other >=8k roms), ZOleg 5 responses
No HP35s Submissions in the Software Library, Les Wright 28 responses
A curious output from the HP-35s, Palmer O. Hanson, Jr. 13 responses
Another dead Woodstock ?, Olivier TREGER 2 responses
PPC ROM 2C / Melbourne ROM manual, ZOleg 2 responses
newbie needs help with HP-25 repair, Stan McFarland 9 responses
Crimson Research Voyageur Simulators for iPhone, Les Wright 7 responses
Op-Amp Gain and Offset Design for the HP-67, Stefan Vorkoetter 6 responses
CCD manual?, Geoff Quickfall 2 responses
Electri-Calc LT, bill platt 6 responses
Casio fx-9860G, KC 58 responses
50G Num solver data entry, vq 5 responses
User Manual for Sparcom Drive95 floppy drive , Prabhu Bhooplapur 0 responses
iPhone/iPod touch 2.2 bug affects i41cx+, Les Wright 22 responses
I am so sad..., Bruce Bergman 7 responses
Nixie, nixie, on my wrist . . ., Paul Brogger 4 responses
Is a 71B math module with manuals worth $225 ?, Marcus von Cube, Germany 6 responses
HPGCC 2 Tutorial Updated with Vista, OS/X, More Examples, Egan Ford 0 responses
Vieta Accelerated, Egan Ford 2 responses
to CHRISTORPH KLUG: your book on Ebay, Patrice 1 response
Texas developed a RPN calculator in 1970's, gileno 18 responses
Swap Disk History (looking for), Egan Ford 0 responses
Driving a relay with the HP-71B, Klaus 1 response
Extra-ordinary stuff at TAS, Walter B 5 responses
Restore of HP-41s, Geir Isene 1 response
OT: R 500/7 T Relay computer, Juergen Keller 1 response
Source for custom dust covers, kc7gr 0 responses
HP-41 Books?, John Liu 15 responses
HP Thermal printer paper, Ronald 3 responses
Oscillator Design with the HP-67, Stefan Vorkoetter 3 responses
copyright, Charles Oxford 19 responses
Expect prices to jump yet again . . ., Paul Brogger 0 responses
EPROM vs RAM, Keith Beyer 3 responses
O.T. Pseodo-random noise, designnut 0 responses
HP-41CV Decimal error, Lyle Beck 1 response
Better "Fast 3D Plots" for HP-50G? , Luca 0 responses
HP95LX connectivity software, Prabhu Bhooplapur 1 response
Autodesk University, Earl Kubaskie 2 responses
HP 82220A Overlay Kit for 48SX?, Keith Beyer 0 responses
Thank you Gerson Barbosa!!, Namir 4 responses
HP-71 41 Translator module : how to use it ?, Pierre Hardy 8 responses
Atmel ARM7 LCD driver, Michele Signorini 35 responses
HP-29C Prototype on Ebay, Matthias Wehrli 3 responses
RPN Question for clearing flags, Sancerre (Phoenix) 3 responses
Hp 41 DEMO Magnetic cards -> Barcode PDF , Allen 3 responses
NoV-64: FOCAL access to switching RAM blocks, Geir Isene 0 responses
The 2 DVD set!!, Don Jennings 0 responses
HTML glitch in Don Jennings' "Trig questions" thread?, Karl Schneider 5 responses
HP-34C Questions, Gerry Schultz 3 responses
SCI-15C question., Pal G. 5 responses
Removing Calculus features from HP-15C, skroops 24 responses
6S, different colour?, Guido Fernandes 0 responses
Trig questions, Don Jennings 9 responses
Calling vp - www.series80.org currently down, John AS (UK) 1 response
HP-35S Printed User's Guide, Thomas Cox 15 responses
Changing Batteries on HP-42S, Thomas Cox 0 responses
My First HP-67 Program: Resistor Networks, Stefan Vorkoetter 2 responses
HP-50g CAS question, Bill Triplett 4 responses
How common is the HP 41 emulator card for 48SX?, Keith Beyer 4 responses
NCEES reapproves 33S and 35S, Norris 27 responses
Case for HP-67, Stefan Vorkoetter 0 responses
HPCALC.ORG updated, V-PN 0 responses
hp 33s / 35s - solving simultaneous 2 variable linear equations with complex coefficients, Smalle 2 responses
Sh__ happens... ;), Matthias Wehrli 7 responses
Ebay bids on HP41CX, twice., Don Jennings 14 responses
HP34C Manual - 30 years ago, Ed Austin 12 responses
(deleted post), deleted 3 responses
HP 18C book for sale, is it worth it?, Don Jennings 3 responses
(deleted post), deleted 1 response
Book for learning 41/42s programming?, Keith Beyer 8 responses
TRANSLATOR PAC PROGRAMMER'S TOOLKIT, John Pierce 2 responses
HP 41 Perpheral Printer/Ludlum 322, prinsron 2 responses
HP-86 CP/M 3.5" boot image?, J. Wesley 0 responses
Thank you!, Michael 2 responses
A Great HP Calc. Community - thanks Mike T!, Ed Austin 2 responses
is the new book of christoph klug in english or in deutsch?, Stefano Dini 3 responses
HP-67 Card Reader Motor, Stefan Vorkoetter 7 responses
Overview of functions in the Toolbox.rom, Geir Isene 6 responses
HP 35 first Lab Prototypes (17 made), pearhart 3 responses
PIL-Box news, J-F Garnier 34 responses
HP-87 - missing half of a ROM expansion, David Dyte 1 response
Double MEM module, Daniel Diggelmann 9 responses
HP12C+, Walter B 88 responses
An interesting site and a question..., Ed Austin 32 responses
Hyperbolic Curiousity Revisited, Palmer O. Hanson, Jr. 2 responses
HP41 Emulation on HP48 Series, Alexander Wassermann 2 responses
how to print from MCODE on the 41?, PeterP 1 response
Emmanuel Compes, Matthias Wehrli 9 responses
HP-16C - idiot trading it...to Intel 9650 ??, V-PN 34 responses
How to Make a good looking Overlay image?, PeterP 17 responses
15C stuck in user mode, Harold Ash 5 responses
MCODE multiprecision library for HP-41, PeterP 8 responses
uWatch Complex Number Support, hughsteers 24 responses
Program only works when stepping, not when running?, Mark Edmonds 5 responses
HP 41CX loose screws (no not the posts!)..., Geoff Quickfall 4 responses
hp49g+/hp48gII advanced user's reference manual, David Dyte 5 responses
Why the HP 41 instead of an RPL / 50g style machine?, Gene Wright 44 responses
HP-41 EXT IL PLUS Module, Christoph Klug 1 response
no way, always invalid card data, nacho 2 responses
Re: 12c application books (leasing, real estate, ... ?) anyone?, Mvdn 0 responses
Transistor Needed for HP-67 Charger, David McClellan 7 responses
35s loose battery cover--need replacement, Mark W 2 responses
Woodstock IC voltages-- Tony? Anyone?, Michael Meyer 15 responses
34C LED Problem, Ed Austin 3 responses
OT:Which the oldest calculator than it uses interchangeable rom? , gileno 3 responses
HPIL to RS232C ( HP 48GX), Nacho 0 responses
Returned from Allschwil ..., Walter B 21 responses
uWatch third batch now available, DaveJ 9 responses
If there is a 35S replacement - please add these:, Mark Edmonds 15 responses
What would cause a HP41CV to SIZE 000-> REG 63 , allen 3 responses
HP-29C signs of life... any clues as to the cause?, Michael Meyer 4 responses
OT: 36mm/1.4" wide thermal paper - where?, Marcus von Cube, Germany 13 responses
Is a 46 worth 1000 Euro?, Marcus von Cube, Germany 5 responses
Allschwil's Meeting 2008 arrival, Christoph Giesselink 10 responses
New HP-41 book edition, Christoph Klug 3 responses
HHC 2008, Richard Garner 21 responses
HP 35s ENTER and keystroke skipping, Luis Moreno 12 responses
OT: Good at eyeballing?, George Bailey (Bedford Falls) 10 responses
HP95C, Wayne Overbeck 4 responses
What is the smallest full trig calculator in production?, Bill Triplett 102 responses
Updating the museum with the "other" machines?, Mark Edmonds 1 response
fixthatcalc.com, David Dyte 10 responses
HP 200A Oscillator on eBay, Michael Meyer 0 responses
12C Classic Simulator for iPhone version 2.0 released, Les Wright 4 responses
Beginning programming for HP48GX?, Don Jennings 52 responses
HP Credibility in the Real world, Ed Austin 4 responses
Complex conjugate function for the 42s?, Hal Bitton in Boise 2 responses
OT: After 70 years: ENIGMAs found in Spain, George Bailey (Bedford Falls) 7 responses
HP 20b capabilities...demo video, Nacho 3 responses
HP 50G MSLV in RPN, Darin Murphy 3 responses
Amazing day :-), Geir Isene 4 responses
The PIL-Box, a new HP-IL <-> PC link solution , J-F Garnier 4 responses
New Off topic, the Great Wall of China thanks to my HP42S 'break program'! pics, Geoff Quickfall 11 responses
HP 48GX and Cynox Ram card 128kb ( warning invalid card data...), NACHO 2 responses
Strange eBay prices lately....., Michael Meyer 8 responses
The New HP47CX ...., Jim P 32 responses
external drive for HP 48G, NACHO 1 response
1984 micro comp catalog, mike reed 0 responses
HP50g - Input with default value, vq 4 responses
Another RPN Convert?, db (martinez, ca.) 12 responses
Which X/Fs normalize Data?, PeterP 1 response
14B & 10B, different models..., Guido Fernandes 3 responses
17B/II, different models..., Guido Fernandes 44 responses
Desktop calcs - residual noise levels?, Mark Edmonds 11 responses
HP50g Global variables scope, vq 2 responses
Bill & Dave, DaveJ 1 response
First HP in Space... 65 or 41C?, Ed Austin 11 responses
Fake Clonix on Ebay, Patrice 9 responses
Numerical Integration on the 35S, Kiyoshi Akima 23 responses
50G symbolic solver, Hal Bitton in Boise 3 responses
Problems with 34C, Ed Austin 19 responses
HP 50g, degree mode, complex polar numbers w/ negative angle, Paul Ozog 5 responses
82240 A and B, what's the difference?, Keith Beyer 1 response
HP-71b – best config ever , Roland Storz 1 response
HP 37 red led with a card reader !, Pascal 1 response
ATIME function HP 41CX versus "ATIME" routine for HP42S, Geoff Quickfall 16 responses
OT: James May's Top Toys, DaveJ 6 responses
The MOARP (a "concept module"... wouldn't it be nice?), Diego Diaz 22 responses
Here's what I carted to the HCC in Corvallis, thought it was..., Geoff Quickfall 5 responses
HP 9100B, Tamas Galosi 3 responses
Allschwil's Meeting 2008, Matthias Wehrli 16 responses
Ongoing Pi Programming Contest, Katie Wasserman 42 responses
Help needed - ATA mode CF Cards & 200LX, Peter A. Gebhardt 5 responses
Just for Fun...?, Mike T. 4 responses
Upgrading memory of Pioneer models - other than 42s, Jeff Kearns 3 responses
I'm just curious, Palmer O. Hanson, Jr. 4 responses
More Forth-41 and HHC2008 Challenge Fun, Egan Ford 0 responses
Lets see your office or lab with the HP stuff in it! I will start..., Geoff Quickfall 48 responses
Contact info for Chris Coffin or Ted Wadman, Eric Smith 2 responses
MOD file format differences for V41 vs i41cx/Nonpareil, PeterP 3 responses
HP 71B Zenwand Manual, Dennis Martin 1 response
HP doing surveys on vintage calcs, Tom Mathes 11 responses
Forth-41 rearranged to run into CX's machines, Diego Diaz 13 responses
HP 50G Cube Root of Negative, Hal Bitton in Boise 8 responses
Survey active! From www.hpcalc.org ... HP would like to hear about your favorite vintage HP calc!, Gene Wright 51 responses
hyperbolic curiosity, Bill Triplett 48 responses
The HP41CX "ATIME" function question, Geoff Quickfall 2 responses
HP 41cx, CLONIX, cosmic rays? Northern lights? what gives?, Geoff Quickfall 19 responses
OT: I'm in the paper, George Bailey (Bedford Falls) 7 responses
mystery X Funtion module for HP-41, Wayne Best 3 responses
42s printing, Keith Beyer 16 responses
HP20B Development Tools / Code, Thomas Chrapkiewicz 2 responses
For the Collectors (Spot the 35 & 48), Les Bell 1 response
HP20B low battery warning doesn't work, BobW 12 responses
ROM file to MOD conversion, PeterP 3 responses
i41CXp and HEPAX, almost there..., Egan Ford 33 responses
HP 50g or older HP48, brian healy 16 responses
48GX... Black LCD version..., Guido Fernandes 7 responses
O.T. Need repair advice, designnut 5 responses
HP 82163 Video Interface, hogelmann 2 responses
Units Menu - HP48 vs. HP50, Jeff Wolfe 3 responses
Calculators that have Scrolling Commas?, Hansel 24 responses
17bII programming question, Dewdman42 28 responses
Allschwil's Meeting, Matthias Wehrli 19 responses
Nice SPIEGEL calculator time-line, Peter A. Gebhardt 1 response
RPN calculator versus Iphone emulator?, Geoff Quickfall 10 responses
HP97 Printer, gileno 1 response
HP calculator - pure RPN only, hpnut 17 responses
where is 35s cos bug, Andrew Nikitin 3 responses
R/S key slightly slanted in 35s, Luis Moreno 3 responses
Young 35S User Unimpressed By Mediocre Complex Number Support, Les Wright 5 responses
HP 48GX blue / black LCD, nacho 1 response
35s filesystem, Andrew Nikitin 0 responses
HP 50g with doubled keystrokes. , Paul Ozog 2 responses
35s: Using STO in EQN in RPN program, Matt Draper 8 responses
Recomp Computer, Don Shepherd 1 response
OT: Mathematica/MATLAB in your pocket?, Egan Ford 7 responses
35s and SQRT of Negative Numbers, Les Wright 8 responses
Updates for i41cxp and 12C Classic for iPhone now available, Les Wright 21 responses
Voyageur Emulators for iPhone now available through AppStore, Les Wright 4 responses
HP 50g Simultaneous Equation Solving, Erik Lane 10 responses
hp50g on-line tutorial, mike reed 1 response
Finally available - Fully Searchable VASM pdfs!, PeterP 3 responses
Best Curve Fitting the HP-67 ?, gileno 12 responses
HP 71B AMPI Statistics Module Manual, Dennis Martin 0 responses
HHC 2008, Patrick Rendulic 49 responses
fix an HP 41C tall key - fullnut, Damien MATTEI 6 responses
Improper fractions, George Bailey (Bedford Falls) 13 responses
HP-41CV Halfnut with serial number beginning 2336, Dan Grelinger 2 responses
Pipe Sliderule Program (PSR), Bob Haynes 4 responses
User's Guide for NoV-64 now available., Diego Diaz 0 responses
50G solving simultaneous equations with fraction coefficients, Meursault 3 responses
Need a new calculator / will there be a successor of HP50g soon?, Michael 7 responses
what about Qonos?, nacho 5 responses
Vintage 12C w/ REAL GOLD Plating???, H. Conwi (No. Calif.) 8 responses
Happy stuffing (envy) !, Walter B 4 responses
HP-41CX Speedup, Jeff Davis 17 responses
C71 ROM for the HP-71B, Jeff Davis 1 response
Recalling Last Time Set Time from Time Module, Dan Grelinger 2 responses
20b IRR "ON [right-arrow] Stop" Error, Cinealta 6 responses
Lifetime supply of 19C thermal paper, Michael Meyer 4 responses
voltage of 9114B disk drive, Gonzalo Fernandez (Spain) 5 responses
12C Classic Paid simulator for iPhone rereleased, Les Wright 0 responses
Any thoughts on calc emulations on the G1?, Bruce Bergman 2 responses
Doubt on the hp 75D , gileno 1 response
Chat in Seattle,confer in Corvallis,coffee in Portland, Wlodek Mier-Jedrzejowicz 0 responses
HHC2008 Programming contest announcement!, Gene Wright 1 response
Blog Entry on HP 20b, Marcus von Cube, Germany 0 responses
Let's talk about the new calcs ?, jose ernesto goncalves 2 responses
got my HP20B today !, jose ernesto goncalves 1 response
HP 5061-7246 HP 71B Diagnostic ROM Manual, Dennis Martin 2 responses
HHC 2008 in Corvallis is 4 days away!, Gene Wright 3 responses
Updates and strange Finance module behaviour (with HEPAX/NoVRAM), Diego Diaz 14 responses
NoV-64 is ready! :-) Preliminary info., Diego Diaz 5 responses
HHC2008 note for organizers, Tim Wessman 0 responses
HP-71B under the scope., peter a walker (papwalker) 5 responses
48g vs. 50g, Chad Wermager 28 responses
Status of iPhone Ports of Free42 and Nonpareil?, Les Wright 3 responses
HP-50g DIVIS, Tim 3 responses
OpenMoko?, Paul Brogger 1 response
9114B Charger PCB Repair, Egan Ford 15 responses
HP-35S: Decomposing a complex number, Antonio Maschio (Italy) 4 responses
What's happened at CMT?? , Allen 10 responses
Help! (Programming HP 39gs), Anne 1 response
HP82165 and HP82166, John Robinson 17 responses
20b Firmware Update, Marcus von Cube, Germany 3 responses
12c for iPhone full version available, Les Wright 3 responses
Cube root of negative number (HP 50G), macky 3 responses
The HP 20b RPN Arcus Cosine Bug, Marcus von Cube, Germany 1 response
50G: calling Stat49Pro, Sancerre (Phoenix) 9 responses
Very Off Topic: Politics, Carly & Dilbert, Britt 6 responses
12c application books (leasing, real estate, ... ?) anyone?, Gene Wright 4 responses
Slightly OT: Reviews of HP-41C & HP-150 in Byte Magazine, Bill (Smithville, NJ) 17 responses
Kinda OT: Innovation, DaveJ 3 responses
i41CX+ 1.0.1 Available, Les Wright 1 response
HHC2008 - Address to HP (Building / Room #) ??, Matt Kernal 0 responses
iTunes App Store: 12c Lite calculator now available..., Gene Wright 7 responses
HP50G Emulator, Jan Kromhout 4 responses
Did someone say that Advantage cannot be loaded in NoVRAM? Was it me?, Diego Diaz 5 responses
Last Year's HPCC 25th-Anniversary Conference Video Available, Jake Schwartz 0 responses
HP-16C PIC of the bunch, peter a walker (papwalker) 1 response
Hepax Emulation under V41, Les Wright 8 responses
Windows configuration for the Clonix & NoV's , Diego Diaz 1 response
web server hack for i41CX+, Alain Mellan 2 responses
HP 20B - 1st impressions, bt_schmidt 30 responses
Programming the HP-20b, Mark Storkamp 0 responses
i41CX+ Bug With Mathstat Module, Les Wright 1 response
Nukenomics, jacksonconsult 0 responses
Typograpic issue in Urroz sci and eng hp 49g vol 2?, Eric Smith 1 response
41CV Math Pack Power Problems, Peter Woysch 4 responses
library 256 and the HP 50G, Jan Kromhout 5 responses
O.T.? Carly's in the news again , Palmer O. Hanson, Jr. 6 responses
Woodstock feet-- any good replacement?, Michael Meyer 3 responses
Please help identify equation, Egan Ford 2 responses
i41CX+ on iPod touch, Les Wright 11 responses
HP 3x Series Internal repairs, Frank Barberis 5 responses
O.T. Chrome locks up, designnut 1 response
HHC room share, Eric Smith 2 responses
HP 41 FORTH Manual, Egan Ford 14 responses
A refreshing change, Hal Bitton in Boise 2 responses
1d Rubik's Cube for HP 35s, Andrew Nikitin 2 responses
HP-IL Video Interface, gileno 2 responses
What did Steve Wozniak design at HP?, Steve Simpkin 3 responses
HP-19C Printer Repair Atempt, Alexander Wassermann 3 responses
Stopwatch program for HP 50G, hpnut 0 responses
Looking for old PPC Journal Program, Egan Ford 12 responses
HP 41 CX cardreader problem, Matti Övermark 4 responses
HP50g plotting question, MikeO 9 responses
35s Name plate?, MarkW 5 responses
HP41 MLDL2000 update, Meindert Kuipers 0 responses
HP50g Bug - Troubling, MikeO 13 responses
HP-11c Battery problem, Rangijay 0 responses
HP Calculator Club, bill platt 0 responses
i41CX+ available on AppStore, Alain Mellan 14 responses
our heritage..., Don Shepherd 14 responses
Christie mini cassette drive, Bill Lafferty 0 responses
O.T. New browser, designnut 6 responses
how do I make user defined functions?, Sam Anderson 2 responses
HP-65 Standard Pac differences?, John Garza 0 responses
Almost completely OT, Walter B 9 responses
Hp 9133h disk drive formatting problem, Pascal 0 responses
HP 34C batteries with AA 1.5V cells, Damien MATTEI 1 response
copying 20B online manual, JDonley 0 responses
HP-41C LOG PAC, Muhammad Ahmad 10 responses
HP 35s - Problem with conversion from polar to rectangular coordinates. , Samir Kopas 1 response
HEPAX/NoVRAM HOWTO?, Egan Ford 1 response
HP-33S, $29.95, Norris 0 responses
Interface card additions to www.hp9825.com, Steve Leibson 2 responses
HEPAX Docs, Egan Ford 3 responses
Blanknut display problem, David Ramsey 7 responses
HP giving away an sd card with 50G purchase, Iqbal 0 responses
Who says the HP 17Bii is not programmable?, Don Shepherd 10 responses
50g and 82240A printing, MikeO 2 responses
HP 25 schematics? IC pinouts?, Borja 1 response
MCODE - anyone interested in a searchable VASM pdf?, PeterP 7 responses
PPC MODULE, Chris Dennis 20 responses
Slightly OT: Praise the pocket calculator!, Frank Boehm (Germany) 1 response
Another query about programming the HP41CX, Bill Lafferty 3 responses
HP-41 Speed up - How many ways were used to switch?, Dan Grelinger 0 responses
17bii Battery Change, Brian H. (Houston) 6 responses
Programming a HP41CX, Bill Lafferty 7 responses
17B, JDonley 4 responses
Got an HP17bII+ Silver , Walter B 4 responses
Buy Calculator in Ebay (Germany), gileno 16 responses
Calculator Design, jonsproject 14 responses
algebraic simplification on the 50G, Hal Bitton in Boise 19 responses
HP-71B Card Reader Problem, Jeff Davis 1 response
Function arc length on 50G, Hal Bitton in Boise 5 responses
HP-71b memory / chip select access - How is it done?, peter a walker (papwalker) 2 responses
STO consumes stack?, MikeO 10 responses
SysRPL - how to start???? (50G), Matti Övermark 3 responses
HP50G ClockSpeed Adjustment Tools -Overclock, hpnut 1 response
29C Charger, Michael Golub 6 responses
HP-41 Astro ROM - Found one, what is it?, Dan Grelinger 13 responses
OT-- for Diego Diaz. Madrid - Las Palmas plane crash, JoseL 3 responses
It Lives !, MikeO 1 response
MCODE - XF-Module Entry Point Symbol List, PeterP 9 responses
HP 20b update, Ken Shaw 1 response
Rarest HP calculator ever????, Joerg Woerner 14 responses
MCODE - good entry point for RCLPTA or similar to find a file in X-Memory, PeterP 6 responses
MCODE question - where to savely store an address, PeterP 4 responses
HP35s Loose Ends, MikeO 19 responses
HP35s key action problem, MikeO 3 responses
Arithmetic or Stack on 10B, Bastian 1 response
why are old HP collectibles?, LLA 18 responses
How would you mod the HP 20b calculator?, hpnut 0 responses
New release of HP9800 emulator, Achim (Germany) 1 response
Stuck/broken keys on HP 48GX..., Alex Trzyna 0 responses
New HP Calc. , Iqbal 7 responses
Memory Lost message in HP41CV, Victor Fernandez 3 responses
Possible to change 20b P/YR default?, Cinealta 11 responses
Speaking of paper..., MikeO 10 responses
Our dear friend ;), Matthias Wehrli 1 response
How to take care of the HP manuals?, Didier Lachieze 14 responses
HP 50G serial number, hpnut 12 responses
Norway's largest(?) HP-collection up in smoke, Geir Isene 15 responses
Hyper HP-41 Speed-Up by Synergistic Design, Dan Grelinger 3 responses
"HP-97" Does TCP/IP!, MikeO 1 response
Fully-modified 20b, Eric Rechlin 26 responses
HP20B back cover, Scott Newell 0 responses
Maybe the HP15c badge should have been reversed.., Geoff Quickfall 0 responses
20b font needed, Cyrille?, V-PN 2 responses
HP 33S keyboard got worse?, Meursault 0 responses
HP42s Programming, Mark Harvey 16 responses
OT: Dilbert - The Knack, Juergen Keller 3 responses
uWatch, DaveJ 4 responses
HP97 and HP67 Emulator Updates, MikeO 0 responses
Black Box Answers, Hal Bitton in Boise 1 response
82143 Printer Service manual, gileno 4 responses
Upper rubber feet on the HP 35s, Ivan Latorre 7 responses
TI 2550 Battery Packs Revisited, Palmer O. Hanson, Jr. 0 responses
HP67/97 Navigation Pac I Update, MikeO 0 responses
Odd date calc on 20b, Darin Murphy 4 responses
HP-35S programming, Antonio Maschio (Italy) 10 responses
50G, Plot-Table-Printing to 82240 IR printer, George Bailey (Bedford Falls) 5 responses
Collecting successes, Palmer O. Hanson, Jr. 2 responses
HP-45 simulator for the HP-20b, Bruce Bergman 14 responses
Why chain logic?, Martin Pinckney 27 responses
HP 20B calculator quality, hpnut 10 responses
HP-41 User's Library Solution, John Mosand 0 responses
20b User Guide and Training Modules, Jon S Canale 8 responses
HHC2008 HP Conference Hotel Discount Ends 27 August, Jake Schwartz 0 responses
Units Localisation request for future HPs, Mark Edmonds 24 responses
HP35s Flag10, Hugh Clement 2 responses
HP 32S II, ce25593 2 responses
HP-35 Red Dot (Rare), gileno 13 responses
Messner article "Fast Learners" debates Calculators in the Classroom, Allen 0 responses
Antikythera Mechanism Revisit, Trent Moseley 1 response
INVISIBLE DECIMAL POINT, designnut 5 responses
HP 20b and CFA exam, Darin Murphy 1 response
HP 41CX replacement battery foil, Sean Connor 2 responses
programing Hp-41cx, Dale Ostrowski 0 responses
How to open battery-cabinets, Karl-Ludwig Butte 0 responses
OT - Bandwidth usage, Charles Oxford 1 response
20b and logs, Mark Storkamp 6 responses
It arrived, JDonley 0 responses
HP-16C : re-surfaced keys, Mikhael T 8 responses
HP is hiering... if you are interested..., cyrille de Brébisson 1 response
Sharing a Story, Ray Tabler 15 responses
Four completed projects, Geoff Quickfall 2 responses
HP 20b SDK, cyrille de Brébisson 27 responses
Windows installer for Nonpareil nearly ready, Eric Smith 0 responses
HP 20B calculator bragging rights, hpnut 9 responses
HP20B mention in Leibson's EDN blog, Scott Newell 3 responses
hbo1 - can you contact me please, Mark Edmonds 2 responses
HP20B US availability?, Miguel Saiz 16 responses
How to Open HP17BII +, retro69 2 responses
(a + ib)^(x + iy) on HP 15C, Chris Dean 9 responses
HP41 Mcode Entrypoint for 'high precision numbers', PeterP 3 responses
HP97 crashing with trig and logs, Mark Edmonds 13 responses
HP41 Nicad pack and Batteries, Larry Fox 5 responses
HP 22 recharable batteries, Jeff Edberg 1 response
Nonpareil progress on 67, 97, and 19C, Eric Smith 0 responses
HP-67 Black Box for creating Word/Phrase/Graphics !!, gileno 0 responses
Are 65, 67, 97, 41c reader motors interchangeable?, pespen 0 responses
Re: Anyone build a ZVC (Zeprom Voltage Converter) Continued - 2, Dan Grelinger 4 responses
New 33S at auction, designnut 0 responses
HP-35s financial program, Caspar L 5 responses
HP 41C Card Reader Metal Strip, Muhammad Ahmad 3 responses
HP 20b front, Hans de Moor 12 responses
HP82161A Digital Cassette Drive, Don McCollom 4 responses
20b.. so obvious even a 2 year old...., Allen 2 responses
HP 20B calculator availablity, hpnut 0 responses
29c "Error" on power up, then works fine, pespen 3 responses
HP 48G display comma separator, hpnut 4 responses
Generic paper in printers and best buys?, Mark Edmonds 5 responses
41c* card reader use more power when just plugged in?, pespen 2 responses
Inverse of Harmonic Numbers (hp 33s), Gerson W. Barbosa 4 responses
HP emulator for Nokia N95 phone?, Ventura Ferré 1 response
Open letter, search and plea for Emmanuel Compes - E03_RTN, PeterP 22 responses
Success, soaked my hp 15C..., Geoff Quickfall 2 responses
HP 35s Screen Glare, Vern Anderson 4 responses
HP 48G pdf manuals, hpnut 4 responses
DVD Orders, MikeO 4 responses
Wiki for HP-20B hacking, Bruce Bergman 6 responses
Case for HP20b , Jeff O. 5 responses
SysRPL question (HP48G-series), Matti Övermark 1 response
Pioneer LCD problem or feature!, Mark Edmonds 7 responses
HP Power Supply Unit (PSU) schematics & Pspice simulation , Jacques Laporte 1 response
HP20b Keys switched, Namir 2 responses
HP-42s upgrades, Diego Diaz 3 responses
HP-20B dev: LCD, Scott Newell 0 responses
Did HP 65 originally include hard case in the box?, pespen 10 responses
HP-41 User's Library Solutions, John Mosand 4 responses
HP-20B key matrix, Scott Newell 2 responses
MCODE - Prime Twin Finder - RFF (Request For Feedback), PeterP 0 responses
Was the 11c shrink-wrapped when new?, pespen 2 responses
82240B Printer Emulation for Windows, Linux, and Possibly Mac, Egan Ford 0 responses
HP-20B test, Scott Newell 2 responses
HP20b - Wolf (RPL calc) in Sheep's (RPN Calc) Clothing?, Jeff O. 21 responses
HP CALCS, designnut 3 responses
HP 20b Operational Items, Jeff O. 0 responses
Looking for on-line HP-41 manual, Thomas Okken 14 responses
ZVC ZEPROM Voltage Converter (continued), Dan Grelinger 21 responses
HP-20B pics!, Scott Newell 21 responses
iPhone HP RPN Emulator, Steven R. Staton 1 response
Control your PC with the 50g, Egan Ford 0 responses
Best Newer HP Calculator under $40, Jeff davis 27 responses
Q: What's better than a 15c?, pespen 26 responses
HP20b Received, Jeff O. 10 responses
New HP 10bII - No Case Included!, Jeff 6 responses
I found a HP-46 today, pespen 2 responses
Does anybody know that module? , gileno 6 responses
My 20b has shipped!, Manatee 9 responses
HP67 Emulator Completed, MikeO 18 responses
11c, 15c, 16c slip case variations question, pespen 1 response
HP 100LX, Mike T. 2 responses
2GB question, jo 9 responses
HP-97 in Nonpareil (work in progress), Eric Smith 6 responses
ZEPROM Auction Problems Explained, Dan Grelinger 0 responses
Allschwil Meeting 2008 again, Raymond Del Tondo 16 responses
HP 12/15/16 on new iPhone 2.0, PeterP 4 responses
OT (Obscurely Tangential): McCain/Fiorina?, Paul Brogger 4 responses
HP 32s/33s/35s Emulators?, Howard Boardman 3 responses
HP 20S Self-Test Question, Karen Allen 4 responses
HP-97 Bug - Do you think they'll fix it?, MikeO 8 responses
Anyone build a ZVC (Zeprom Voltage Converter), Dan Grelinger 13 responses
New HP 17bII+ , Jeff 17 responses
HP41 navigation module question, Muhammad Ahmad 19 responses
Updated HP41C Simulator from RLM TOOLS, Namir 2 responses
HP-41CV zebra strips, Tim 7 responses
Non-HP credit-card-sized scientific, Don Davis 6 responses
Damn....I really like the Voyagers, Jimi 4 responses
HP-41 Online Module Database, Juergen Keller 0 responses
Complex number capability in non-HP machines, Palmer O. Hanson, Jr. 11 responses
Problem with tiny HP-16C program - can you debug this?, Richard B 8 responses
OpenRPN wiki, Alvar Kusma 3 responses
HP-35 Math Pac, Charles Oxford 1 response
HP-41 system question, Monte Dalrymple 5 responses
Race Track Module Help Please???, Jack Russe11 2 responses
HP 22 recharable batteries, Jeff Edberg 2 responses
HP 17B II ++ (silver) available, Andrés C. Rodríguez (Argentina) 0 responses
Small bug in MLDL2000 software found, Meindert Kuipers 0 responses
Bug in ZEPROM PROGRAMMER code? or HP-41CX?, Dan Grelinger 0 responses
Producing symbolic derivative on 48G, Roger King 4 responses
Keys failing on 32S, Bob Kellock 6 responses
OT, but: Congrats to the Spanish soccer team!, Raymond Del Tondo 9 responses
40GS Available in the US, John B. Smitherman 1 response
A couple of RPL questions, Hal Bitton in Boise 10 responses
[OT] Texas Instruments TI-2550III battery pack BP3, Antonio Maschio (Italy) 7 responses
A lecture about the HP28 and the Saturn processor, DaveJ 0 responses
Calculators still used on the Space Shuttles or ISS?, pespen 1 response
Wanted: The % Function to Work Properly on Next 50+g, Eddie W. Shore 6 responses
HP 42s: print to HP photosmart, George Bailey (Bedford Falls) 1 response
HP calcs for professionals, Marco Polo 3 responses
HP-41CX & Barcode Wand Problem, Nick Taylor 6 responses
SPICE power supply board, Joel Setton (France) 2 responses
Nifty iPhone HP-41CX Template Workaround, Mike 2 responses
my HP 41cv displays a comma rather than a decimal??, Eric Mann 3 responses
Very nice HP-95LX book, alternative to the manual, Johnny Bjoern Rasmussen 0 responses
HP 20b - you can display your name when it turns on, Gene Wright 13 responses
HP 20b converted, Walter B 33 responses
Prime factorization in the 48GX, Hal Bitton in Boise 8 responses
41CX on Ipod Touch help, Chuck 4 responses
HP-42S, 41CX and synthetic programming thoughts, Vincent Weber 0 responses
IR module slows down 41CX, Egan Ford 14 responses
WAY OT: programmer's sayings, Mike Reed 19 responses
71B card reader problem HELP !!!!, jo 1 response
A working HP97 Emulator!, MikeO 3 responses
Went to go buy a 20b, and found this..., Bruce Bergman 9 responses
20b on sale?, Ivan Nejgebauer 5 responses
Is it me or is the HP 41CX the..., Geoff Quickfall 11 responses
Found flea markets, new and old, Geoff Quickfall 1 response
HP 48SX Quick Reference Guide, Charles 4 responses
Why sells a Casio FX-603P for USD 1225.00 ?, Joerg Woerner 6 responses
MLDL2000 Manual and Specification are available, Meindert Kuipers 0 responses
CMT Products, Jeff Davis 28 responses
HP41 on iPhone, PeterP 26 responses
41CX + Wand and IR module, Egan Ford 6 responses
Compiling Nonpareil, Marcus von Cube, Germany 8 responses
why is HP still selling calculators anyway?, Jan 26 responses
Automatic HP41CX Program, Bill Lafferty 2 responses
Var arithmetic on RPL machine?, Hal Bitton in Boise 2 responses
Solving non-rational expressions on 49G?, Nicolai Sten 6 responses
U.S. availability of HP 20B calculator, hpnut 16 responses
Dim 42S display, Michael Larson 5 responses
When? 20B, JDonley 7 responses
HP 20b Manual , hpnut 7 responses
The 20b as a development platform, Bruce Bergman 32 responses
uWatch now available, DaveJ 6 responses
Desktop Large Format HP-Almost there.., John Stark 0 responses
Prognosticating about HP's future plans, Martin Pinckney 2 responses
HP Gadget..., Giancarlo (Italy) 4 responses
Non HP RPN, db (martinez, ca.) 4 responses
HP 20b Business Consultant calculator announced, Gene Wright 66 responses
11c hang-up, Fabian H 2 responses
Iphone and RPN maybe, Chuck 4 responses
HP 41 Card reader, Victor Fernandez 3 responses
HP17BII+ Battery Exchange - Tip to succeed!, Peter A. Gebhardt 0 responses
Formulas for ->HMS & ->HR, Pekis 0 responses
A little RPL help, Hal Bitton in Boise 4 responses
To whom it may concern: Clarifying note regarding fake Clonix copies., Diego Diaz 0 responses
U Watch programming question.., Geoff Quickfall 12 responses
HP 48G unit conversion, hpnut 2 responses
EMU71 HPIL error, Sean Connor 3 responses
50g flag labels, designnut 2 responses
Calculator forensics, designnut 1 response
Problem: 2nd 32k of CY suddenly missing, PeterP 7 responses
XEQ vs. GSB, Antonio Maschio (Italy) 2 responses
Calculator Algorithm or Canon F-766S vs TI-89, Joerg Woerner 7 responses
uWatch next generation?, Donald Williams 7 responses
Any reputable source that fixes 75C and 71B models?, jbssm 0 responses
Displaying all roots of a number, Hal Bitton in Boise 2 responses
Personal Meetings, NDAs, and HHC 2008, Richard J. Nelson 2 responses
HP 50g successor, Ivan Latorre 10 responses
HP48G,GX andSX for TDS use, Ian Carmichael (South Africa) 0 responses
Shooting the engineers?, Palmer O. Hanson, Jr. 17 responses
New MLDL2000 Software now released, Meindert Kuipers 5 responses
OT: new ebook: Build your own programmable calculator, Karl-Ludwig Butte 13 responses
HPGCC 2.0SP2 C Tutorial Updated, Egan Ford 0 responses
HP 35SW ?, DaveJ 8 responses
HHC2008 HP Handheld Conference in September, Jake Schwartz 43 responses
Quick Reference Card for HP 48G, hpnut 5 responses
HPILCOM and the 41, Gerry Schultz 6 responses
MCODE: The insidious AECrom, Geir Isene 3 responses
The small calculator, Ignazio Cara (Italy) 12 responses
Non-financial programs for the financial calculator, Kalevipoeg 3 responses
uwatch, Paul Dale 18 responses
something new from TI, Don Shepherd 1 response
Some curious numbers from my HP-67, Palmer O. Hanson, Jr. 11 responses
HPILCOM, Jeff Davis 3 responses
HP28C Flags, Poelmans Bart 2 responses
HP-71B - Clockdsp Line 23, Roland Storz 7 responses
A Third Order Linear Equation Solver for the HP 35Sc, Palmer O. Hanson, Jr. 0 responses
HP 50g calculator - HELP!, larry boyuno 3 responses
OT: This guy definitely has no plan of what he is selling, Marcus von Cube, Germany 5 responses
HP 82153A WAND revision 1E versus 1F, Pierre Hardy 1 response
She thinks I'M a nerd..., Earl Kubaskie 7 responses
32s - statistics, Frank Rottgardt 3 responses
HP Portable Plus, Stefan Vorkoetter 2 responses
How to open my HP-32SII, Sören Nilsson 8 responses
MCODE Timing Allerlei, PeterP 33 responses
Lovely pictures of a 'cut' Curta on the unmentionable site, BruceH 5 responses
O.T. Remarkable Mars movie, designnut 4 responses
Holding memory during battery change, Palmer O. Hanson, Jr. 4 responses
50g strange artifacts, dashes, designnut 0 responses
uWatch Source code released, DaveJ 18 responses
OT: There are still deals to be had..., Jeff Kearns 8 responses
OT: Elektronika MK-52 / dead EEPROM?, Thomas Radtke 1 response
Old EPROM Images, PeterP 0 responses
17B case, Charles Oxford 6 responses
MCODE (NoV-32): Odd behaviour, Geir Isene 8 responses
33s - programming question, Frank Rottgardt 4 responses
Problem with HP-97 Card reader, jbssm 1 response
Help with a general LCD problem in HP 11C (Voyager series), Chris Falk 2 responses
HP-15C: Library of complex-number utilities , Karl Schneider 6 responses
HP 35s successor?, Kyle Husmann 60 responses
Desktop HP Model(s), John Stark 6 responses
HP 48GX Brass Plate, John McCormick 1 response
Medical statistics - OT, Charles Oxford 7 responses
RPN scientific Casio Calc watch..., DaveJ 7 responses
HP 71b Working with LEX files, Sean Connor 1 response
HP-17B II financial calculator drains batteries frequently, Larry Gagnon 4 responses
HP-11C LCD display decay, Larry Gagnon 1 response
hp35 Dead, Victor Fernandez 7 responses
HEPAX Pictures, PeterP 10 responses
Charger for HP97, Chan Tran 1 response
Strange HP48S ?, Math 1 response
Calculator newsletter, DaveJ 8 responses
Let and get 17bII+, Darin Murphy 1 response
Forth on 71B, Xerxes 4 responses
HP 20b?, Egan Ford 20 responses
50G USB cable similarity, designnut 4 responses
HP-67 and TI SR-52 compared, Marcus von Cube, Germany 16 responses
hp 41 problems , JaSon 4 responses
HP-42S without FIX notation. Very strange.. or not?, Ignazio Cara (Italy) 5 responses
17B won't start up, Charles Oxford 1 response
HP 35s:Sys. of Lin. Eq. with Complex numbers, Jamie Slade 11 responses
A Program for Converting Interest and Discount Rates on HP12C, MacDonald Phillips 0 responses
NoVRAM RAM to PC .ROM file image... Directly!! ;-), Diego Diaz 4 responses
accessing tvm in solver for the 17bII+, Darin Murphy 1 response
An Extension for Stefan's Matrix Multi-Tool Program, Palmer O. Hanson, Jr. 0 responses
(OT) Message for Valentín Albillo, Andrés C. Rodríguez 2 responses
Hp calculator (41CV/71B) startup question, Kou Tadayoshi(United States) 6 responses
It's Derby Day!, Don Shepherd 1 response
50g and programs., Mark Sim. 1 response
HP12c Financial Questions... yet again!, CaribbeanHP12c 13 responses
HP-97 Printer repair , Karl-Ludwig Butte 7 responses
Quick question about the 71b, Geoff Quickfall 5 responses
O.T. On learning English, Palmer O. Hanson, Jr. 17 responses
Revisiting: Poking a value into address 4100 (NoV-32/HP-41), Geir Isene 2 responses
Hp-97 Service Manual, Joel Setton (France) 3 responses
For Mr. Diego Diaz, Ignazio Cara (Italy) 1 response
A "Cadillac" Quadratic Solver for the hp 33s and HP35s, Palmer O. Hanson, Jr. 3 responses
ID'ing 2 Overlays and Labels?, barryt 2 responses
MCODE question - C=-C-1 MS sets carry in MLDL but not in SDK41, PeterP 2 responses
Worlds Smallest Calculator, Kevin Kitts 7 responses
Help with an HP-67 Stat Pac I Program, Namir 0 responses
Learning Basic....and a question about MAKELEX in Joseph Horn's "HP-71B BASIC MADE EASY", Geoff Quickfall 24 responses
uWatch kits - expression of interest., DaveJ 25 responses
Finance Formulas, Jeff Maloney 2 responses
For our readers knowing some German..., Walter B 2 responses
OT: Gray stains LCD, gileno 0 responses
MoHPC 9114 repair Manual, PeterP 1 response
HP-41C Pool Maintenence Programs, Jeff Davis 8 responses
HP Clamshell In a Video, Ron G. 1 response
Annotated MCODE listing for Sandbox - Angel Martin, are you around?, PeterP 3 responses
Which EPROM box to use with two equal length EPROMS, PeterP 2 responses
HP 50g a few questions, Jonathan Vogel 13 responses
Iphone RPN, Chuck 31 responses
MCODE - Hyperlinked SDK41 Manual, PeterP 13 responses
Wallet Case For 12C?, JT 6 responses
reading mini cassette tapes, Spencer Rowse 2 responses
(deleted post), deleted 1 response
HP-35S and angle between two segments in the space, Antonio Maschio (Italy) 6 responses
HP 71B, HP 41CX, clonix and etc and more..., Geoff Quickfall 6 responses
35s revision?, Rick Brown 5 responses
HP 71B With HPIB Disk Drive ?, Sean Connor 1 response
Hidden functions on the HP-35S ???, Slawomir Bucki 49 responses
50G ABS function perplexing, Hal Bitton in Boise 5 responses
Help Appreciated Identifying Unusual HP-41 ROMS, Dan Grelinger 4 responses
Humbly, I return to the Gods: HP12c Help!, CaribbeanHP12c 12 responses
HP 71B HPIL questions and the HPCC!, Geoff Quickfall 12 responses
HP 71B Service Manual, Dave Frederickson 8 responses
O.T. I wish to write with members outside the US, designnut 3 responses
Another viewpoint, Palmer O. Hanson, Jr. 15 responses
10 years ago: Unofficial Emu48 Update, Christoph Giesselink 12 responses
HP 41CV repair required, Geoff (Wales) 2 responses
Several HP-Calculator items, Jarle Vik 4 responses
Computer History Museum, DaveJ 1 response
HP-25 Repair?, Palmer O. Hanson, Jr. 5 responses
AECROM Manual, Jeff Davis 4 responses
ThinkJet 2225B Battery Pack 82199A Repair, Dan Grelinger 4 responses
50G book from Samson Cables, designnut 2 responses
HP82120A 3 terminal battery pack, Gonzalo Fernandez (Spain) 0 responses
No 50G instructions update, designnut 1 response
Received new 12CP Anniversary Edition today, but..., Stephen Easterling 6 responses
82161A Cassette Drive, Sean Connor 4 responses
An idea on HP-35S Keyboard Problems, Palmer O. Hanson, Jr. 4 responses
x-41 MacOS updated for Intel architecture, Alain Mellan 0 responses
Bypassing write protection in HP-67/97 Cards, jbssm 2 responses
HP-11C display decay, Jerry Natowitz 3 responses
HP-71B 82161A (Cass. Drive) Emulator, Raymund Heuvel 6 responses
HP 35s order, Howard Lazerson 4 responses
a very unscientific survey, Don Shepherd 10 responses
What do you think about HP calculator development?, Walter Lam 21 responses
many 50g at auction, designnut 0 responses
Clonix NoV's (and the like) news and updates., Diego Diaz 3 responses
BBC article on The Garage, John Keith 7 responses
Repairing an HP-65, jbssm 5 responses
HP35 - for your personal viewing pleasure on Friday, Frank Boehm (Germany) 5 responses
MCODE Triangle Solutions, Jeff Davis 5 responses
HP Calculator Sale Ending Today?, Dan Grelinger 0 responses
HP82120A battery pack schematic, Gonzalo Fernandez (Spain) 0 responses
Is there any interest out there in Topcat tear-bars?, Ignazio Cara (Italy) 0 responses
HP 20S colour scheme, DaveJ 9 responses
HP-11c, 15c, 16c emulator for the HP-150, Pascal 2 responses
50G self test fail?, designnut 1 response
HP 35S and 12C Platinum Anniversary Edition, Stephen Easterling 12 responses
Is there any interest out there in HP-150 source code ?, Valentin Albillo 4 responses
LOG function or ln, CaribbeanHP12c 21 responses
50G at auction, designnut 0 responses
Programs and number entry, Mike T. 7 responses
HP-71B on german ebay (not ad), Alejandro Paz (Germany) 15 responses
HP41 Private Function, Winfried 0 responses
How to open my HP-32SII, Sören Nilsson 2 responses
HP35s Programming Help , Chuck 1 response
Look what I just got! (slightly OT), Mad Dog ebaycalcnut 14 responses
HP35s price drop on HP Web site, Jon S Canale 8 responses
hp 41C for a smile!, William L. Drylie 6 responses
New site, J-F Garnier 8 responses
HP 28C/S battery doors, Keith Beyer 0 responses
Ebay reminder, Dave Hicks 0 responses
ARRGGG HP 41 double x memory experts, help, Geoff Quickfall 2 responses
HP-29C, Robert Hollyer 7 responses
MLDL2000 + HEPAX Correct Configuration, Jeff Davis 5 responses
TI-59 with printer, Frank Rottgardt 3 responses
HP67 Moon Rocket Lander., Mike T. 7 responses
The 7x7 Linear Equation Solver for the HP-67 , Palmer O. Hanson, Jr. 53 responses
Fullnut/Halfnut, what do I keep?, Egan Ford 6 responses
HP-41 Repairs, SteveH 0 responses
What is that interface? HP97S I/O, gileno 1 response
HP 200LX - Install DOS Applications based on Zip Files , Roland Storz 4 responses
Effective Computer-aided Calculator Programming - Part 1 - Voyager, Egan Ford 0 responses
Define a complex function, Micheal Jennings 1 response
Short & Sweet Math Challenge #20: April 1st, 2008 Spring Special "Oh So Simple !...", Valentin Albillo 87 responses
50G involves too much learning,selling, designnut 7 responses
Reasons for choosing a 12c Platinum over the 17bII+?, Jorge M. Treviño 13 responses
HP 150 touchescreen, ffabrizioluga 3 responses
HP 35s REGY, REGZ ,REGX, Howard Boardman 9 responses
(deleted post), deleted 9 responses
(deleted post), deleted 1 response
HP 35S Manual .pdf in English, David A. 10 responses
O.T. want to discuss practical Servos, designnut 1 response
OT: LCD Repair Question, Maximilian Hohmann 14 responses
Allschwil Meeting 2008, Raymond Del Tondo 5 responses
New HP-41C Emulator from RLM Tools, Namir 6 responses
HP 17bII+ Solver Problems and Workarounds, Don Shepherd 0 responses
OT: Classpad with "No boot block", Marcus von Cube, Germany 1 response
Key "bounce", Keith Beyer 3 responses
hp 35s keyboard issue, jdgc (spain) 3 responses
OffTopic: MC for Epson HX-20, Juergen Rodenkirchen 2 responses
OT: HP Jornada 540, Ren 2 responses
A bug and a related mini-challenge, Rodger Rosenbaum 19 responses
HP-41 CX MCODE Prompting, Jeff Davis 1 response
HP 71b repair, Sean Connor 0 responses
ERAMCO RSU RAMBox - Battery Replacement, Dan Grelinger 9 responses
Forth / Fortran77 for HP-1000CX, Roland Storz 5 responses
HP 50g text box menus for functions, Stephane 3 responses
There's only seven days left, Valentin Albillo 2 responses
Keystroke Intensive Casio, Hal Bitton in Boise 2 responses
HP110 Portable battery, Prabhu Bhooplapur 2 responses
(deleted post), deleted 3 responses
graphing calculators- basic question, Howard Lazerson 4 responses
24K ROM PROGRAMMABLE MODULE FOR HP-41C HP-41CV HP-41CX, gileno 14 responses
How to capture HP-50g Display-contents, Karl-Ludwig Butte 2 responses
HP-10 Dis-assembly, Jeff Davis 2 responses
Which is the best? TI58C x HP67, gileno 56 responses
NoV-32/HEPAX bug, further research, Geir Isene 15 responses
OT: Seat-of-the-pants Crank Shaft Physics, Paul Brogger 5 responses
Vintage calculators, do they need regular occasional use?, wildpig 8 responses
Clonix via USB, PeterP 9 responses
HP-41 Modules/battery usage, Kevin Kitts 1 response
HP 01 Watch repair, Jerry Hayes 4 responses
HP 32SII "Clicking", Santeh 1 response
Emulators HP67 & HP12c MacBook, CaribbeanHP12c 3 responses
HP-41 modules, Matthias Wehrli 9 responses
New HP non-programmable calc?, DaveJ 25 responses
It's a Joy: The HP-67 and This Forum, Trent Moseley 1 response
Voyager Painted Keys- a 16C with triple personality, Allen 1 response
LXVII: New HP67 emulator (OS X), bt_schmidt 1 response
State of the art, Walter B 12 responses
OK to leave AC adapter plugged into wall outlet?, Don Shepherd 18 responses
Newest project, another restoration..., Geoff Quickfall 3 responses
HP 17bII+ Silver vs Gold, SCSNOW 5 responses
Survey of HP35s Owners, Brian Healy 54 responses
MCODE: NoV-32: WROM/WRITE S&X/040 to address 4100, Geir Isene 5 responses
HP35s lemon?, ravwalia 10 responses
HP48 Keyboard Scanning and Electrical Resistance, Thomas Chrapkiewicz 2 responses
HP-50G CASE FIT, designnut 3 responses
HP 50g, jpinda 1 response
Small cover over toggle keys 41 blanknut, Diehl-Peshkur 5 responses
Can anyone check this strange behavior on HP-15C, Bastian Erdnüß 4 responses
Lower case alphabet for the hp35s?, Palmer O. Hanson, Jr. 4 responses
Double Extended memory module HP41cx.., Geoff Quickfall 11 responses
HP User Contributed Programs, Bill (Smithville, NJ) 0 responses
Broken HP-25, Simon Williams 4 responses
HP 19C..., Luis 6 responses
How to write HP-9121 floppies from a PC ?, Pascal 4 responses
Happy Pi Day, Egan Ford 2 responses
MLDL2000 Update, Meindert Kuipers 5 responses
Nonpareil for OS/X, Egan Ford 6 responses
CORDIC Trigonometric Algorithm on an HP17BII, Charles 4 responses
HP-25 first production dates & quantities, Rob W. 0 responses
Sudden death of HP33S batteries, Dave Shaffer (Arizona) 1 response
My first programable HP, Howard Lazerson 18 responses
Ulam's Spiral on HP 17bII+, Chris Dean 25 responses
HP 41C Display Window Adhesive, Mitch Sisak 0 responses
HP-10C emulator ?, Valentin Albillo 9 responses
Texas Instruments - The PET Project, Joerg Woerner 4 responses
New Article: HP 41C Service/ Diagnostic ROM Versions, Allen 2 responses
CLASSIC RPN Calculator Simulators - Updated (Again), Mike T. 0 responses
HP71b - Forth Modul, Roland Storz 2 responses
Silver 17BII+ - General remarks and a solver example, Marcus von Cube, Germany 10 responses
11c questions, Mark W Paris 8 responses
HP 50g finding the nth derivative, Jonathan Vogel 3 responses
New (to me!) HP-25, Seth Morabito 6 responses
HP-71B FORTH/Assembler??, Mike 2 responses
Where to buy HP calcs in 1974, Don Shepherd 45 responses
Default "Beep" pitch in HP 49/50, Howard Boardman 0 responses
HP 15C Self-Test Question, Santeh 12 responses
OT: iPhone SDK, Alain Mellan 7 responses
PROGRAM DISPLAY QUESTIONS, Mike T. 6 responses
HP 48S Schematic ?, Thomas Chrapkiewicz 1 response
HP 35S teardown with video, Tom Mathes 8 responses
Looking for William Doug Wilder, Meindert Kuipers 7 responses
50th birthday !, Valentin Albillo 38 responses
Free calculators, what to do with them?, Brandon McGriff (USA) 4 responses
HHP 96k module configuration (HP-71B), J-F Garnier 1 response
50g, Trig Identities Gone Wild, Hal Bitton in Boise 4 responses
No luck with HP41CV's, Martin Sonntag 6 responses
50G Keys hard?, designnut 4 responses
OT: Looking for a person who uploaded HP-41E and TI-57E to www.hpcalc.org, HrastProgrammer 2 responses
Where to find the little red rocker switch for Speed up in HP41, PeterP 3 responses
What's the going rate for a 15C?, BruceH 4 responses
hp-9121 floppy disk repair help needed, Pascal 5 responses
HP48s won't turn on, Alto7 11 responses
HP 35S replaced (keyboard problems), Tom Mathes 15 responses
HP17BII+ - Help with writing Solve Equations...!, Will Lloyd (UK) 7 responses
A compiler for HP-11C, Thomas Klemm 6 responses
Any separate manual for the Mainframe Labels Rom?, Geir Isene 10 responses
How do you feel about the 50g?, designnut 42 responses
OT: Great Texas TI 58/59 Compiler., gileno 4 responses
41C to 50g Migration, Egan Ford 6 responses
HP seven-segment display patent, Eric Smith 0 responses
48SX cards in 48GX, John Ferman 26 responses
wrinkled HP program card wallets, Geoff Quickfall 3 responses
Plea for HP-41 User Contributed Programs, Bill (Smithville, NJ) 11 responses
Solving for an Integral: 28S solution, Marcus von Cube, Germany 2 responses
Picture of silver 17bii+, Walter B 14 responses
Super News from Randy Sloyer, John Ferman 0 responses
HP-41C Display Window Replacement, Mitch Sisak 2 responses
sticking key HP11C, Pete Copeland 4 responses
hp9815a repair, frankabc 3 responses
HP 42s display, Hal Bitton in Boise 6 responses
HEPAX (NoV-32) reproducible error, Geir Isene 13 responses
HP 9100B magnetic card, Robert Bennett 2 responses
HP 50 Descriptive Article, John Ferman 2 responses
EMS ROM doesn't work on HP-85A (note for PRM-85 owners), john as (uk) 0 responses
Misbehaving 42s Multirow Menu Annunciator?, Dallas Osborne 4 responses
HP Calculator History , Todd Garabedian 6 responses
HP67/97 RND Function, Mike T. 8 responses
Battery Pack for HP 21, Jeff Kearns 5 responses
Book question???, Mad Dog ebaycalcnut 2 responses
mini-challenge, Don Shepherd 9 responses
Advantage Rom Module (Prototype version), Mike Brainard 10 responses
Number representation, Juergen Rodenkirchen 5 responses
[OT?] Mini-challenge, Eduardo Duenez 28 responses
Connectivity Issues Continued, Ed Look 2 responses
Hewlett Packard HP 82164A HP-IL / RS-232C and 71b, Michael McGrath 4 responses
How HP Got Its First Calculators: Video Interview with Tom Osborne, Steve Leibson 15 responses
HP 48 Mac Serial Cable, John Ferman 4 responses
HHC Conference mailing list, Eric Smith 0 responses
MICRO SD CARDS IN HP 50G??, MIKE REED 10 responses
what I did...what do you think?, nacho 6 responses
NOS Mini Data Cassettes?, Mike 13 responses
Magiclik question, Mad Dog ebaycalcnut 4 responses
Proposed rule regarding ebay discussions, Dave Hicks 16 responses
Windows 1.03 for Vectra valid for HP-150 ?, Pascal 10 responses
[OT] I'm a Daddy!, Tim Wessman 12 responses
What is the "best" way to control the #thing#?, Matti Övermark 5 responses
Elektronika MK-152, Joerg Woerner 17 responses
HP-41CX MCODE Stack Functions, Jeff Davis 12 responses
HP19C printer needs service, Prabhu Bhooplapur 4 responses
Technolust?, Palmer O. Hanson, Jr. 13 responses
eBay strike survey, Mad Dog ebaycalcnut 37 responses
Using Custom (vectored) ENTER, Gerry Schultz 2 responses
Quote "May a Calculator bring you great Happiness", Jeffrey Davis 4 responses
Valentine's Day 2008 Mini-Challenge !, Valentin Albillo 37 responses
Calculator Benchmark, Faster 50g/HPGCC3 results, Egan Ford 7 responses
Serial Ports - HP48, PC, HP200LX, etc, Thomas Chrapkiewicz 4 responses
Does anyone know where I can find a green TI-30XB?, Dima Braun 6 responses
HP 48 Insights Program Disk, Gerry Schultz 0 responses
Question to Mike T, Namir 8 responses
Largest number on hp48g, wildpig 1 response
How to list an HP85 ?, Adrian Godwin 3 responses
What the heck, it is a calculator and I just restored it...., Geoff Quickfall 6 responses
HP 50g won't turn on, Kevin Chernoff (Canada) 6 responses
How to remember all the equations/programs?, ravwalia 2 responses
HMS+ / HMS- implementation., Alex L 10 responses
survey, reth 26 responses
NovRAM/NoV-32 experiences (MLDL2000 users: also for you), Geir Isene 13 responses
One-week eBay sellers' boycott , Karl Schneider 1 response
Geometric problem, Hal Bitton in Boise 2 responses
Lambert's W on the HP-33s, Gerson W. Barbosa 17 responses
HP 71B adapter and RPN, michael mcgrath 8 responses
HP 97 restoration, rkellernj 2 responses
Charging NiMH cells on calculators, Luis 4 responses
Question from a lazy (lost?) guy, Olivier TREGER 9 responses
CLASSIC RPN Calculator Simulators - Updated , Mike T. 18 responses
HP35S automatic renumbering mess, designnut 1 response
41CX fixed by fixthatcalc, JDonley 8 responses
Survey: most used 12C programs, Eric Smith 5 responses
Sparcom Cards, Abraham L 2 responses
Victor V12, db (martinez, ca.) 10 responses
Using equation solver multiple times on HP35s.., ravwalia 7 responses
Tear Down: Scientific calculator boils design down to two ICs, Miguel Toro 1 response
HP41 display segments fail, JoseL 2 responses
Anyone mind if I criticize one ad?, Mad Dog ebaycalcnut 22 responses
Vintage Technology, gileno 2 responses
MLDL2000 new software coming soon, Meindert Kuipers 2 responses
Kinpo: do they make the 35s?, bill platt 4 responses
Undocumented 35S shortcuts, designnut 1 response
HP-34C Old vs. New Version Spice, Mike Morrow 2 responses
HP 35s - The incarnated Commodore C64, Joerg Woerner 7 responses
how to reset my hp11c, Dirk (Japan) 1 response
Calculator Benchmark 48GX/hp48xgcc and 50g/HPGCC3 results, Egan Ford 19 responses
35s Programming (need help), Chuck 51 responses
Now where the heck did this calc come from?...a hint, perhaps?, Dallas Osborne 5 responses
hp 48 4 pin from computer parts, wildpig 16 responses
Caution, explicit photos...the collection to date! The vintage people will like this!, Geoff Quickfall 27 responses
Replica HP-41cx, Cumhur NALCIOGLU 5 responses
Listing for "Star Sight Planner" from Nav Pac for HP-67/97, jbssm 1 response
35's screen format, ramb 5 responses
Thermal Printer Paper for 82143A Printer?, Gordon Hamachi 1 response
HP 17 BII ++ (silver), Andrés C. Rodríguez 15 responses
Get A Grip on Calculus, Palmer O. Hanson, Jr. 1 response
Money Weighted Return with HP 12C, David Bag 3 responses
OT: Wii Remote Innovation, Paul Brogger 7 responses
Article about 35s at Embedded.com, Eric Smith 8 responses
Backslash on HP-71b, Klaus 2 responses
office accessories for Voyager calcs, megarat 2 responses
HP-65 programs on the HP-67, jbssm 1 response
hp35s missing keystrokes, Brian Healy 19 responses
HP-35S complex numbers, designnut 2 responses
HP-71B CMT RAM module question, J-F Garnier 7 responses
Are Seiko/Epson RAM cards compatible with the HP 48GX?, Gonzalo Fernandez (Spain) 4 responses
50g vector or complex arguments in exact form?, Hal Bitton in Boise 2 responses
HP 41 Plugin Module Problem, Gordon Hamachi 16 responses
The Unmentionable Auction Website, Mad Dog ebaycalcnut 10 responses
HP 82929A Programmable ROM Drawer Schematics ..., Jorge Amodio 3 responses
My brand new HP35 (odd problems), Steve (Australia) 2 responses
Simple PV ? HP 12C, Matthew Call 2 responses
HP calculators for everyday engineering, aranda1984 22 responses
Emu48PPC display resolution, Christoph Giesselink 12 responses
Strange HP 41C Card reader, jbssm 8 responses
Kermit K95 ver 2.1.3 GUI and the hp48sx, Mike Reed 6 responses
Calculator Benchmark: HP-48GX/SysRPL, Thomas Klemm 14 responses
HP-41 Program conversion to Text files, Jeff Davis 9 responses
Near, or exactly, rank-deficient matrices., Rodger Rosenbaum 17 responses
CLASSIC RPN Calculator Simulators - Updated, Mike T. 10 responses
HP-55, HP-45,HP-35, Jeff Davis 6 responses
Problem with HP-75C LCD display, jbssm 0 responses
BASIC to RPL translation., wildpig 64 responses
Beginners RPN needed, designnut 17 responses
HP-35S instructions on CD, designnut 5 responses
[way OT] Casio fx-190, George Bailey (Bedford Falls) 16 responses
This 11C will drive tears into your eyes..., Raymond Del Tondo 14 responses
HP 12c Platinum TMV help, Brandony 14 responses
HP-41C/CV/CX Battery Pack Circuit (burnt diode), Al Snyder 4 responses
HP41CX XROM, Bill Lafferty 3 responses
HP 12d Platinum 25th Anniversary Edition Review, Eddie W. Shore 6 responses
hp 45 conversion to quartz timer, Geoff Quickfall 5 responses
HP-67 ROM simulator with card reader, Jacques Laporte 1 response
Just "discovered" Colin Robert Croft website, Peter A. Gebhardt 1 response
Dead HP41CX?, Gordon Hamachi 8 responses
A shortcut for running programs on a HP-35s, Antonio Maschio (Italy) 4 responses
DC100A or similar END OF TAPE problem: fix?, Jose V Gavila (Spain) 1 response
OK to use 2 CR123 cells in an HP41C ?, Jacques Bilinski 9 responses
HP 35s Review, Stefan Vorkoetter 0 responses
Solving a linear system with physical meaning, Rodger Rosenbaum 52 responses
Preserving / repairing classics boxes, Thomas Radtke 0 responses
The HP 45 complete restoration with PICTURES!, Geoff Quickfall 12 responses
MCODE: The significance of a "3" in nybble 3 in register "b", Geir Isene 4 responses
hp-19bII, Andre W Gaup 3 responses
hp9815a repair, frankabc 0 responses
HP 55 and HP 45 restorations, Geoff Quickfall 4 responses
Testing Stefan's Matrix Multi-Tool Program for the HP-35s, Palmer O. Hanson, Jr. 4 responses
Easier way to program 50G, Rolf Dubek 0 responses
Can the Clonix 41 module be used together other modules?, Gonzalo Fernandez (Spain) 2 responses
a few hp42s and 42s emulator questions, Mike Reed 11 responses
HP 12C Platinum - $44.95 Replacement, Joerg Woerner 22 responses
EXTENLEX for the HP-71b, Klaus 1 response
HP-41 Skwid ROM manual addendum, J-F Garnier 9 responses
Availability of new HP 17bII+, Jeff O. 11 responses
HP 48GX Black LCD on eBay, Nick Nicholas 6 responses
OT: Business Calculator from Dynatech.de, Marcus von Cube, Germany 4 responses
My New HP 11c and 15c, Chuck 11 responses
HHC2007 Conf Proceedings Available for Download, Jake Schwartz 3 responses
HP 35s MEMORY FULL (well, not really!!), EL 3 responses
HP97 printer paper does not advance, Prabhu Bhooplapur 2 responses
HP-41 MCODE: Making an MCODE program call another MCODE program, Geir Isene 10 responses
Extend your 50g with C DRAFT/WIP, Egan Ford 6 responses
HP85: NOS HP98200A sealed tapes... still useful?, Jose V Gavila (Spain) 5 responses
HP-71B: HP-IL ISA PC Card, Alexander Wassermann 5 responses
HP17BII+ enter key, Mvdn 4 responses
HP 35s vs HP 50, Nick Taylor 16 responses
HP35s Internal Investigations re: Creation of the PH35sx, Jeff O. 27 responses
HP-01, Phillippe Gerard 4 responses
Searching the HP Museum Forum Archives, Gerry Schultz 2 responses
what about Qonos?, nacho 5 responses
Large Numbers Revisited (for Jean-Michel), Chuck 4 responses
Complex numbers HP32SII, ravwalia 9 responses
HP-85 Port Extender?, Juergen Keller 1 response
HP 35s (and 42s) Crystal replacement, Lyuka 11 responses
A simple puzzle (no prize offered :-), Gerson W. Barbosa 3 responses
What's the best calculator for a college Physics course?, Ron G. 5 responses
HP 71B - installing memory modules, Rob Lilley 7 responses
triangle area without trig., Hal Bitton in Boise 30 responses
HP 71B SHOW PORT, Rob Lilley 1 response
OT:Texas TI-59/58C make calculations % using HIR , gileno 13 responses
Tape drives like in the HP 85 - Emulate?, Bruce Blevins 2 responses
how to 2x speed hp48gX, nacho 5 responses
Displaying numbers greater than 9.99E499?, Jean-Michel 19 responses
Hp 41 CX not turning on, wildpig 6 responses
Displaying calculators -- How do you do it?, Steve (Australia) 6 responses
Changing display contrast on HP 27s, MitchT 7 responses
HP 28 Internal Photographs?, Travis Goodspeed 6 responses
Programming Programmable Calculators, Stefan Vorkoetter 40 responses
Again about limted stacks (and other limitations), Nick 14 responses
Next ebay account of Emmanuel Compes, Matthias Wehrli 2 responses
HP 41CX NULL MESSAGE, Derek G. Graham 1 response
Comparing Ti 89 Titanium vs. Ti 84+ SE vs. Hp 50g, PhysicsNerd 16 responses
Changing the positioning of the arithmetic keys -- why?, Palmer O. Hanson, Jr. 11 responses
Happy New Year, Matthias Wehrli 28 responses
Ebay Link:H-P 97 CALCULATOR PLUS EXTRAS, gileno 1 response
Amazon's price for the 35s, Palmer O. Hanson, Jr. 13 responses
5% Rebate for a 41C Blanknut :-), Jean-Michel 10 responses
Few Topics. It seems we're all on vacation, isnt' it?, Antonio Maschio (Italy) 5 responses
50G summation function., Hal Bitton in Boise 5 responses
hp 82240A Printer - Sacrilege?, Tito de Magalhaes 4 responses
HP 10S - a piece of junk or what?, McAllan 6 responses
hp35s display, Woody Ochs 2 responses
EDLEX and TEXTUTIL, Jeff Davis 2 responses
OT: Casio Games Site, gileno 0 responses
The Future of Hp Calculators, John W Kercheval 0 responses
Exotic Calculator Modifications, John W Kercheval 18 responses
Happy Halloween!!!! ;-) OCT 31 == DEC 25, Meenzer 16 responses
12C Platinum - Dust in Display, Jeff 0 responses
Most Expensive Calculator Sale Seen?, John W Kercheval 16 responses
Windows XP connection to 48SX, Scott Larson 2 responses
HP 35 Value, Jack Wallace 4 responses
ZENGRANGE -vs- CMT Eproms:Any Cross-Compatibility?, Allen 0 responses
Merry Christmas & Happy Holidays, Walter B 11 responses
The silver HP17 B II + (or is it "HP 17 B II ++" ?), Andrés C. Rodríguez 17 responses
HP Portable Plus, John W Kercheval 4 responses
hp 20s self test, Charles Oxford 6 responses
48gII: updated?, Ivan Nejgebauer 1 response
"Power Lost" msg on HP-28S, Jean-Michel 1 response
HP-97 Flashing Display, Nick Taylor 5 responses
Changing batteries on 35s, Mark Storkamp 2 responses
Norwegian television to air program with HP calculator collection, Geir Isene 23 responses
HP 50G RS-232, Matti Övermark 1 response
hooking up HP-IL with a Thinkjet 2225D RS-232 printer, Rob Lilley 3 responses
HP-15C locks up when certain keys are pressed, Greg Gosian 8 responses
HP-85A calculator, hpnut 0 responses
HP-71B, RamLab 0 responses
HP-71 RPN Calculator, Alexander Wassermann 4 responses
EL: September 1973 Playboy Magazine Vintage Calculators :-), gileno 3 responses
HP-20S and MEM command, Antonio Maschio (Italy) 2 responses
Hp 71 program to perform prime factor, wildpig 29 responses
Nut processor opcodes, Rick Coates 1 response
HP50G, Rolf Dubek 6 responses
One step forward, Thomas Radtke 31 responses
Access (temporarily) not available , Vieira, Luiz C. (Brazil) 0 responses
HP 95LX, Keith Beyer 3 responses
HP35s: Interpolate, ChristianB. 3 responses
HP 01 value, I thought I would resurrect this as a fresh post...., Geoff Quickfall 6 responses
New-old-stock HP-35 Calculator top in original bag - Ebay Link, gileno 12 responses
A funny about the TI-83, Fred Lusk 34 responses
Cleaning HP 15C, Terry Holmes 2 responses
Where do you use you calculator ?, Ljad 13 responses
12c does not display "running" anymore, Don Shepherd 5 responses
HP49G+. How to erase a directory that contains lots of stuff?, J.C.Boco 6 responses
HP48 Printing in Trace Mode, Gerry Schultz 1 response
Is it possible to turnOff HP-41 display?, Matti Övermark 4 responses
New domain and email address for MLDL2000, Meindert Kuipers 0 responses
Vintage PROTOTYPE HP Xpander Calculator. MINT CONDITION, gileno 6 responses
HP-35s : problem with vector input, Jean-Michel 3 responses
Interesting (Floating Point) Math Articles, Giancarlo (Italy) 7 responses
Why did this HP-01 fetch so high a price?, Wlodek Mier-Jedrzejowicz 17 responses
OT: New RPN Calculator, Xerxes 27 responses
Christmas is arriving. If somebody wants to give me a gift :-), gileno 5 responses
Man calculates the 13th root of a random 200 digit number in his head in 70 secs!, BruceH 5 responses
Who Needs a Calculator, Anyway?, Les Bell 2 responses
50g for $89.99 US until 12/11 4:00 PM PST (Amazon Lighting Deals), Dave Britten 2 responses
UTPN in the solver, Benny 5 responses
Large Cylindrical K&E Slide Rule, Chuck 5 responses
Any other suggestions for a dead 48GX?, Ron G. 4 responses
Because the value is high ?, gileno 11 responses
50G Programming question, Roger King 5 responses
OS-41, Geir Isene 1 response
O/T: Monroe 324G Scientist Programmable, Geoff Quickfall 11 responses
OT: Texas Instruments SR 52 Programmable Complete! A great opportunity., gileno 19 responses
HP-15C and beyond, Antonio Maschio (Italy) 8 responses
OK RPN Purists: Why NOT a big stack?, Brad Davis 49 responses
New value for a HP41CX !, gileno 2 responses
HP-41CX (or 41C/CV + Time module) challenge, Geir Isene 3 responses
HP50g Statistics Application, sam 5 responses
HP-50G: Graphs from list of data points, Mike 2 responses
HP 35s Polar to Rectangler in Program mode, Will Hart 8 responses
HP-35S pdf manual?, Antonio Maschio (Italy) 2 responses
HP 48SX vs 28S, Keith Beyer 17 responses
HP-97 Keyboard Problem, Nick Taylor 1 response
AMP Rom for 71b, PeterP 5 responses
HP Customer Service, Jeffrey Connor 22 responses
HP 91 Printer, Ignazio Cara (Italy) 4 responses
HP35s missing keystrokes?, Brad Davis 16 responses
HP-25 keyboard problem (4 enters 6), glauber 3 responses
Slightly OT...four points on a plane., Hal Bitton in Boise 12 responses
50G: Max size of SD, Mike 10 responses
HP-80 Emulator, Paul Bauman 2 responses
case for TI NSpire, Don Shepherd 0 responses
TOPCON HA-3 with HP-71B, Jeff Davis 1 response
50G: Fix 2, Mike 3 responses
50g won't turn on (or, no screen output) !, Al Snyder 7 responses
Adv+CCD+Games in 41CY or Rambox, PeterP 6 responses
[OT] (Cos x)^x, Chuck 11 responses
Timing HP Calculator Programs, Bill (Smithville, NJ) 10 responses
HP Calculator Manufacturer, Chris 5 responses
HP 35s: pdf manual in French, Meenzer 3 responses
Broken 41CV display, Matti Övermark 1 response
Back to the 42S, Chuck 1 response
HP-12C family, Antonio Maschio (Italy) 2 responses
How about a Phoenix 35S?, DaveJ 42 responses
The short flight of the Phoenix?, Walter B 3 responses
35s Using the Equation Solver, Martin Pinckney 1 response
RPN on TI-89 Titanium, Meenzer 0 responses
How to find "inverses?", PhysicsNerd 10 responses
clearing indirect memory in a program on 35s, Don Shepherd 0 responses
HP 71B: Input LEX files without HP-IL?, Meenzer 8 responses
How can i solve this kind of linear system, Alexander DeLarge 6 responses
The R/S key in 35S, kc 10 responses
Clamshell battery door, Charles Oxford 4 responses
HP-48sx repair, Carl Mannheim 4 responses
HP-19C Article on My Web Site, Stefan Vorkoetter 14 responses
Inside the 35S, DaveJ 2 responses
Happy Thanksgiving, Eddie W. Shore 0 responses
VIEW on HP 41CV, Alfredo (Italy) 7 responses
HCC2007 programming contest on 17bii, Don Shepherd 8 responses
Calendar program for 50g, Jeffc 4 responses
Got the 50g..., Arne Halvorsen (Norway) 7 responses
fractional powers of negative numbers, Edward McNally 15 responses
How rare is version B of the HP Solve EQ Libr. Card?, Han 2 responses
Russian Mk-61, Chuck 7 responses
Graphing wristwatch, Masao Kinoshita 3 responses
hardware prototypes, Kevin Kitts 0 responses
Amazon Sales of the HP 35s, Brian Healy 5 responses
HP49g keyboard shortcuts , Alexander DeLarge 4 responses
HP-35 and CORDIC-articles at Dr. Dobb's, Karl-Ludwig Butte 2 responses
The number of keys..., DaveJ 52 responses
My entry for the HP35S Programming Contest in HHC 2007 (long), Andrés C. Rodríguez 15 responses
combine 41c memory modules?, sylvandb 7 responses
fixing a 41cv worth it?, sylvandb 0 responses
A french is selling his huge HP calculators collection, David L 7 responses
HP 01 Battery replacement & back removal tool, Paul OHare 0 responses
A really universal machine (the calc), Frank Rottgardt 0 responses
I second Doug´s proposal! (N.T.), Vieira, Luiz C. (Brazil) 0 responses
HP 41S - 2013, Mvdn 4 responses
late reply to archived posts, stafford 0 responses
Yet Another Calculator Project (Sorta), Les Bell 0 responses
Re: JIMROM, Doug 0 responses
NCEES approves 33S and 35S for 2008, Norris 56 responses
Re: Problems with Internet Explorer, Randy 1 response
Re: Repairing the hp 82104A Card Reader , fred moon 1 response
Keystroke programming worksheet, Martin Pinckney 5 responses
Re: New Root Seeking Algorithms, Hans de Moor 1 response
FYI, Arne Halvorsen (Norway) 3 responses
Re: Upcoming interview with Tom Osborne, Ren 2 responses
Re: Who buys HPs these days?, Ren 0 responses
CATALOG on HP 41CV, Alfredo (Italy) 8 responses
Re: Phoenix 45s: Software Architecture, Jake Schwartz 13 responses
Re: I cant remember how I did it on the 50g, Chuck Sommer 0 responses
HP-71B DIY RAM Modules anyone?, Hans Brueggemann 9 responses
Linus Pauling exhibit, Karl Schneider 0 responses
Re: Got my HP-35S, Alfredo (Italy) 0 responses
Re: HP-35S (Italian documentation), Antonio Maschio (Italy) 5 responses
Re: Phoenix 45s: Font (for the key labels), Walter B 0 responses
Re: WOW! Check out this LCD module, Walter B 14 responses
Hafnium transistors!, designnut 13 responses
Re: New Root Seeking Algorithms, hugh steers 1 response
Phoenix project, Jean-Michel 3 responses
Constants in the HP35S, J-F Garnier 3 responses
HELP! Wanted, a missing part of an HP85... , Gabriele Zaverio 0 responses
Open45s: Commitment poll, Meenzer 21 responses
Re: Phoenix 45s: 2 and 4-line displays, Pavneet Arora 8 responses
Re: Failing ports on HP-41, Raymond Del Tondo 0 responses
Re: What a 35s has caused..., Raymond Del Tondo 0 responses
Re: Phoenix: another view at this name (pretends to be funny), Trent Moseley 2 responses
Re: Phoenix: another view at this name (pretends to be funny), Walter B 0 responses
HHC2007 HP Calc Conference Video Now Available, Jake Schwartz 0 responses
Re: Phoenix 45s: Font (for the key labels), Meenzer 2 responses
Connector for 82002A AC Adapter, Gerardo Rincon 0 responses
Re: Phoenix: another view at this name (pretends to be funny), Pavneet Arora 0 responses

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