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oldest 41c???
02-22-2017, 10:19 AM
Post: #1
oldest 41c???
so who still owns their 41c from new?
I bought mine when I was 17, that makes mine 38years old!
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02-22-2017, 04:31 PM (This post was last modified: 02-22-2017 05:30 PM by Geoff Quickfall.)
Post: #2
RE: oldest 41c???
Wow, you had money at 17! :-)

Mine is Spring of 1980 and the board still works but the has been replaced with a CL board. The CL now contains my 600 Line program complete with synthetics that I wrote in 1984. The cards that hold the code worked flawlessly when I loaded the program to the CL and now is saved to flash. This 41c tall keys (with charger contact balls) was expanded to CX status minus the clock and finally replaced by a 41CX in 85. I do have a 7922Axxxxx but that came much later.

The CX effectively replaced the 8088 PC we had at the lab (with two 5mb stacked hard drive!) in 84 as well as run some lab equipment via HPIL. Still have both but installed the CL the 41C and use it at work.

[Image: IMG_2338_zpsnyjb6bma.jpg]

Line 042 is PRTON from the IR Print module. The HPIL TO INKJET was used therefore XROM 29,33 as the 'BLINKY' module was removed to print the code with the HPIL PRINTER. You can see some simple synthetics at lines 14, 16, 68, 219, 226 but I cheated and used the ZENGRANGE ROM image from the CL board and not the byte jumper of old.

PS the labelling on the blank overlay is done as follows:

  1. Create a file on word processor of choice.
  2. Set font 9 or whatever works for your eyes and the blank overlay fields.
  3. Format, space and print until labels correctly spaced on blank paper.
  4. Once happy, print on laser/inkjet clear label stock.
  5. Slice with ruler and blade to fit lengthwise in the blank rows


Certainly easier then the Letraset we used in days of old.
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02-22-2017, 06:37 PM (This post was last modified: 02-22-2017 06:37 PM by Massimo Gnerucci.)
Post: #3
RE: oldest 41c???
(02-22-2017 10:19 AM)emlclcy Wrote:  so who still owns their 41c from new?
I bought mine when I was 17, that makes mine 38years old!

I had my first one in '79, when I was 19.
Still with me.

Greetings,
    Massimo

-+×÷ ↔ left is right and right is wrong
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02-22-2017, 09:12 PM (This post was last modified: 02-23-2017 05:07 PM by Dave Hicks.)
Post: #4
RE: oldest 41c???
(02-22-2017 04:31 PM)Geoff Quickfall Wrote:  Wow, you had money at 17! :-)

when I saw a demo of it I scrimped and saved the £165 quid!
lot of money then and I wasn't well off!!
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02-24-2017, 10:27 PM
Post: #5
RE: oldest 41c???
41C #1932A00186, purchased 8/1979.
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02-25-2017, 01:48 AM
Post: #6
RE: oldest 41c???
Now that is an original Jim.

Is this the one with the buggy ROMs that were removed and that you gave me a few years ago? I intend to install those ROMS onto a 1979 board.

Best regards Geoff

Also a most heartfelt strength for sending me to Tinkercad and shapeways. The clock looks perfect with the new buttons.
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02-25-2017, 10:13 PM
Post: #7
RE: oldest 41c???
Not the oldest, obviously, since I'm in the UK, but...

2004A01507 purchased 11th January 1980, for the princely sum of £185.00 according to my still cherished invoice. from Sumlock Bondain. Clerkenwell, London. Still wotking fine despite a little corrosion on the BAT terminals. And it did need a replacement LCD after about a year.
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02-26-2017, 12:11 AM
Post: #8
RE: oldest 41c???
(02-25-2017 01:48 AM)Geoff Quickfall Wrote:  Now that is an original Jim.

Is this the one with the buggy ROMs that were removed and that you gave me a few years ago? I intend to install those ROMS onto a 1979 board.

Best regards Geoff

Also a most heartfelt strength for sending me to Tinkercad and shapeways. The clock looks perfect with the new buttons.
Yes, that was it. When the '41CV came out, three of us at HP Santa Rosa got the new RAM chips in house and replaced the ones in our calculators, making them HP-41C machines with full memory and free module slots. I suspect mine is long gone, though, along with its card reader, PPC ROM and more due to half a storage unit in a move being lost (along with my HP-01 with extra button pusher, etc.). Sigh. 'Twas a really good machine!
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