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Early (earliest?) HP-41C find.
12-08-2018, 05:44 PM
Post: #21
RE: Early (earliest?) HP-41C find.
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. ;-)

"Do not suppose, check it twice."
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08-30-2019, 11:13 AM (This post was last modified: 08-31-2019 07:00 AM by CY-CL.)
Post: #22
RE: Early (earliest?) HP-41C find.
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.
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08-30-2019, 07:23 PM
Post: #23
RE: Early (earliest?) HP-41C find.
Do you have the bays number of the auction, please?
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08-30-2019, 07:31 PM (This post was last modified: 08-30-2019 07:33 PM by CY-CL.)
Post: #24
RE: Early (earliest?) HP-41C find.
Sure; the auction number is: 123884788017
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08-30-2019, 08:38 PM
Post: #25
RE: Early (earliest?) HP-41C find.
Can not find it. No longer viewable on the bay?
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08-30-2019, 09:21 PM
Post: #26
RE: Early (earliest?) HP-41C find.
(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

Greetings,
    Massimo

-+×÷ ↔ left is right and right is wrong
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08-30-2019, 09:58 PM (This post was last modified: 08-30-2019 10:00 PM by HP-Collection.)
Post: #27
RE: Early (earliest?) HP-41C find.
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 Wink
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08-31-2019, 12:57 PM
Post: #28
RE: Early (earliest?) HP-41C find.
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?
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08-31-2019, 06:56 PM
Post: #29
RE: Early (earliest?) HP-41C find.
(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.
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08-31-2019, 07:11 PM
Post: #30
RE: Early (earliest?) HP-41C find.
Oops and ty. I missed those somehow. Thanks for the pointer!
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