HP41CV with transitional internal design

[isanchez]

HI,
last week I bought an HP41CV sn 2128Sxxx...nothing special apparently.
The calculator is in great shape except that one of the battery connections was burned.
I opened it to change the flex connector and I was a bit surprised because I found that the board was attached with two plastic o-rings, just to press the board when the back side cover is present. I saw this in early HP41c with a couple of metalic nuts making the work themselves without the action of the back cover. In later 41C and CV the back cover evolved to press the board directly...I have many 41s and this is the first I have seen with this mixed mechanism.

Maybe you knew this but I would like just share it. It is new for me. I enclose some pictures (the stuff in the holes is a little bit of vaseline)

Kind regards

[attachment=2589]
[attachment=2590]
[attachment=2591]

[Geoff Quickfall]

Not transitional.

That was a 'nut' machine with the small threaded nuts. It however, has been back to HP for repair work and the nuts have been replaced with the plastic 'o' rings.

This is because the nuts are a one use mechanism. They self tap on, but a second attempt after being removed usually ended in a stripped screw post. Thus the o-rings were used if the nuts failed to hold the board in place after repair.

Cheers, Geoff

[isanchez]

Hi Geoff,

thanks for your comment. I am gonna check if this calculator was repaired by the HP service. I have access to the original owner.

By the way, is there any possiblity to get a couple of side covers? the small one that covers the rechargable battery plug. I know someone offered replicas in Ebay but with a very high price for the item and extremely high shipping cost to Spain. It could be a good issue for 3d printers...

Regards

Ignacio

[Massimo Gnerucci]

(09-28-2015 10:25 AM)isanchez Wrote:  By the way, is there any possiblity to get a couple of side covers? the small one that covers the rechargable battery plug. I know someone offered replicas in Ebay but with a very high price for the item and extremely high shipping cost to Spain. It could be a good issue for 3d printers...

Did you already check here?

[ElectroDuende]

(09-28-2015 10:25 AM)isanchez Wrote:  By the way, is there any possiblity to get a couple of side covers? the small one that covers the rechargable battery plug. I know someone offered replicas in Ebay but with a very high price for the item and extremely high shipping cost to Spain. It could be a good issue for 3d printers...

Hola Ignacio,

This part is available from shapeways, same as battery or port covers, for a very interesting price. This is discussed in this thread:

http://www.hpmuseum.org/forum/thread-4141.html

Anyway, it is the part of the kit that i like less; it doesn't seem to have much grip, and I'm afraid it may get lost easily.

Un saludo,

Alberto

[isanchez]

Hi,

this is impressive!! I am going to get it...

Thanks!

By the way Alberto, are you located in Spain? it is difficult to contact collectors in Spain...

Kind regards

Ignacio

UPDATED: I got four side covers...thanks!!!

[ElectroDuende]

(09-28-2015 03:11 PM)isanchez Wrote:  Hi,

this is impressive!! I am going to get it...

Thanks!

By the way Alberto, are you located in Spain? it is difficult to contact collectors in Spain...

Kind regards

Ignacio

Yes I do, I'm in Pamplona. But I won't call myself "a collector"... just somebody who discovered the HP's with the 48G when entered the Engineering School, and loved them. I don't even have a dozen of them (mostly pioneers).

Kind regards,

[Dave Frederickson]

(09-28-2015 03:11 PM)isanchez Wrote:  this is impressive!! I am going to get it...

FYI, with Ignacio's order that brings the total number of parts sold to 79!

Dave

[Massimo Gnerucci]

(09-28-2015 03:28 PM)Dave Frederickson Wrote:  

(09-28-2015 03:11 PM)isanchez Wrote:  this is impressive!! I am going to get it...

FYI, with Ignacio's order that brings the total number of parts sold to 79!

Dave

Thanks again Dave!

[isanchez]

Hi,

Alberto, I find that twelve can be considered a "growing up" collection.
I am located in Valencia. Please contact me directly by PM, if you need anything.
Nice to meet you!


Dave, good work and thank you! It is a pain to see the 41s without the side cover...;-P


Kind regards


Ignacio

[Dave Frederickson]

(09-29-2015 07:37 AM)isanchez Wrote:  Dave, good work and thank you!

The real thanks goes to Nate for creating the models.

BTW, Shapeways is offering free worldwide shipping this weekend.

Dave

[emece67]

(09-29-2015 07:37 AM)isanchez Wrote:  I am located in Valencia. Please contact me directly by PM, if you need anything.
Nice to meet you!

Nice to meet both of you. I'm in Madrid.

Regards.

[ElectroDuende]

(09-30-2015 08:18 AM)emece67 Wrote:  

(09-29-2015 07:37 AM)isanchez Wrote:  I am located in Valencia. Please contact me directly by PM, if you need anything.
Nice to meet you!

Nice to meet both of you. I'm in Madrid.

Regards.

Nice to meet you too!

It seems that there is still some interest for real HP's in Spain... :-)

[Ángel Martin]

(09-30-2015 09:18 AM)ElectroDuende Wrote:  

(09-30-2015 08:18 AM)emece67 Wrote:  Nice to meet both of you. I'm in Madrid.

Regards.

Nice to meet you too!

It seems that there is still some interest for real HP's in Spain... :-)

Here too, consider me gone (left Spain many moons ago) but not so completely ;-)
Saludos, Ángel

[isanchez]

My best wishes for all of you!
Maybe we can consider to create a "Spanish Lobby" within the Forum! ;-D

Saludos

Ignacio

[Julián Miranda (Spain)]

Hi Spaniards!

Alberto, I studied in Pamplona and now I live nearby, in La Rioja.
I've been visiting hpmuseum.org since 2002, sometimes more frequently sometimes less (as nowadays) but I almost always find something interesting here.

[isanchez]

Hi Dave,

Today I have recieved the side covers for the 41's...it fits perfectly, I like it! Thanks a lot!

Kind regards