HP41.org

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 Three Transistor

41C Final V1

41C Final V2

41CV Initial

41CV 1981

41CV 1983

41 CV-C combo - C version

41 CV-C combo - CV version

41 CX-CV-C combo C version

41 CX-CV-C combo CV version

41 CX-CV-C combo CX version

Hi there,

You may want to have a look at:

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

Cheers!

Diego Díaz

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

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

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

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.

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.]

Reconstructed post #1 using google
Thanks to hpmuseum and other.