Different HP41 CPU

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Different HP41 CPU

Postby jotne » Wed Nov 26, 2008 10:08 am

Here are some picture of different 41 CPU. From what I remember, there was around 10 different one.
If you have picture of your 41 CPU that do not look like the one here, please upload it.

41C Two Transistor
41C Two-Transistor.jpg


41C Three Transistor
41C Three-Transistor.jpg


41C Final V1
41C Final-v1.jpg


41C Final V2
41C Final-v2.jpg


41CV Initial
41CV-Initial.jpg


41CV 1981
41CV-1981.jpg


41CV 1983
41CV-1983.jpg


41 CV-C combo - C version
41C-CV C version.jpg


41 CV-C combo - CV version
41C-CV CV version.jpg


41 CX-CV-C combo C version
41C-CV-CX C version.jpg


41 CX-CV-C combo CV version
41C-CV-CX CV version.jpg


41 CX-CV-C combo CX version
41C-CV-CX CX version.jpg
HP41CX with CCD module . HP41CV . HP42S + many other HP calculators
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Re: Different HP41 CPU

Postby Replycant » Thu Dec 25, 2008 6:40 am

Hi there,

You may want to have a look at:

http://www.clonix41.org/Maintenance/hp-41_PCBs.htm

Cheers!

Diego Díaz
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Re: Different HP41 CPU

Postby jotne » Sat Dec 27, 2008 5:25 pm

This is a CX board.
The CV board do not have the CX Rom and CX Xtal
The C board do not have the CX stuff and less memory chips.
Large picture

IMG_1416s.jpg
IMG_1416s.jpg (147.64 KiB) Viewed 13093 times
HP41CX with CCD module . HP41CV . HP42S + many other HP calculators
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Re: Different HP41 CPU

Postby Worf_VX » Sun Jul 22, 2012 1:05 pm

Hello,
many of this photos are not visible now... And I dont know why you shoot board calculator with a covered CPU marking?

So, i have one question. How is official and code name of HP41 CPU? Nut or Coconut? In documentation is 1LE3... Do you can help me with this?

Here is HP41 CPU in my collection: http://cpufpu.ic.cz/hp/1lf5.html
My full collection: http://cpufpu.ic.cz/



Very thanks
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Re: Different HP41 CPU

Postby jotne » Sun Jul 22, 2012 4:44 pm

Hi

I do not know what have happens to the image, thy are no longer on the server.
The name is Coconut. Nut is just used to describe any version.
Coconut
Halfnut
Fullnut
Blacknut
etc
HP41CX with CCD module . HP41CV . HP42S + many other HP calculators
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Re: Different HP41 CPU

Postby Worf_VX » Sun Jul 22, 2012 6:07 pm

jotne wrote:Hi

I do not know what have happens to the image, thy are no longer on the server.
The name is Coconut. Nut is just used to describe any version.
Coconut
Halfnut
Fullnut
Blacknut
etc


Very thanks, I rewrite to Coconut in my pages :-)

If somebody of you have any CPU or MCU (can non-working) I like for it.
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Re: Different HP41 CPU

Postby tomjackson » Mon Dec 03, 2012 9:32 am

The picture 41CV which is the picture from HP museum is the same CPU that I have. I think the CV board in this CPU does not have the CX Rom and CX Xtal. That is the only disadvantage of this CPU.

[Edited by moderator: unrelated spam link removed.]
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Re: Different HP41 CPU

Postby jotne » Fri Dec 28, 2012 4:25 pm

Reconstructed post #1 using google :)
Thanks to hpmuseum and other.
HP41CX with CCD module . HP41CV . HP42S + many other HP calculators
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