Early (earliest?) HP-41C find.

[Diego Diaz]

Hi all,

Since some of you had showed interest in them, I've finally decided to put some items for sale, including this HP-41C prototype and the unique STO. DOMINGO ROM module.

Check tomorrow evening (sure you can find where :-)

Xmas sale is open!

Enjoy.

Best from the Canaries.

Diego.

Note: I'm about to turn 60 next month, that's why you'll find "59.9" figures all over. ;-)

[CY-CL]

One week ago, was sold on eBay another prototype. It was declared as 1901A00043, but this is not correct, because the backside is from a production run “warranty” HP-41. And the CPU-Board contains three NUT Rom’s from a later production date as them from 1916A00066 Prototype.

The correct S/N would about 1916A00100 regarding the production date from the NUT Rom's.

[HP-Collection]

Do you have the bays number of the auction, please?

[CY-CL]

Sure; the auction number is: 123884788017

[HP-Collection]

Can not find it. No longer viewable on the bay?

[Massimo Gnerucci]

(08-30-2019 08:38 PM)HP-Collection Wrote:  Can not find it. No longer viewable on the bay?

https://www.ebay.com/itm/123884788017?Vi...3884788017

[HP-Collection]

Ok, so the earlies proto ist still in your hand CY-CL?
Here is Jürgens description:

https://calc.fjk.ch/hp-41-prototyp/

But I agree: the non working calc is not worth that price

[Gene]

Has anyone been able to do a bug check on the D-D-D rom images with this earliest HP 41 ? Presumably the important bugs 2 and 3 and there, but anything else found?

[hth]

(08-31-2019 12:57 PM)Gene Wrote:  Has anyone been able to do a bug check on the D-D-D rom images with this earliest HP 41 ? Presumably the important bugs 2 and 3 and there, but anything else found?

See posts #12, #14 and #15 of this thread.

[Gene]

Oops and ty. I missed those somehow. Thanks for the pointer!