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HP-Collection · 03-09-2017, 10:22 PM

(03-09-2017 08:14 PM)Dave Frederickson Wrote:
(03-09-2017 05:28 PM)HP-Collection Wrote: Hi Jean-Francois

Thanks for checking. So, I do not have to do it anymore..... I'm now looking for the following informations (marked red) - help is always welcome.....

HP75C Software list - BETA

FWIW, 82726A (WRITE39) is a blank custom ROM.

What means "blank custom ROM"?

Dave Frederickson · (This post was last modified: 03-09-2017 11:16 PM by Dave Frederickson.)

Blank (unprogrammed) is probably incorrect as these are probably mask programmable and not OTP. So, 82726A is not the product number specifically for the WRITE39 ROM as many custom 8K ROM's will have that product number.

Also, the ODS ROM, 82720A, is an older product number for an 8K custom ROM.

Dave

HP-Collection · (This post was last modified: 03-10-2017 01:11 AM by HP-Collection.)

I pretty shure the Write39 is a official rom module. Have a look at item 222407966676. 82726A-S02 is a unique product number of HP, isn't it?

**rprosperi** · 03-10-2017, 01:59 AM

(03-10-2017 01:04 AM)HP-Collection Wrote: I pretty shure the Write39 is a official rom module. Have a look at item 222407966676. 82726A-S02 is a unique product number of HP, isn't it?

Code39 was a popular form of barcode the 75 wand could read, so it's reasonable to conclude (though I have no facts) that Write39 was some form of related application, perhaps for printing Code39 barcodes. Just a guess though.

HP-Collection · 03-10-2017, 09:51 AM

Unfortuantelly we will never know if the seller insists in his high prices and no-contacts. I can not get in contact with him as he blocks european contacts as well.

Matthias

**rprosperi** · 03-10-2017, 01:44 PM

(03-10-2017 09:51 AM)HP-Collection Wrote: Unfortuantelly we will never know if the seller insists in his high prices and no-contacts. I can not get in contact with him as he blocks european contacts as well.

Matthias

He/she never responds to any inquiries at all, from anyone, as far as I've heard; certainly none from me. Quite strange. And all prices there are crazy high. Sadly, some people pay those prices, so small chance they will ever come down.

HP-Collection · 03-10-2017, 02:30 PM

Not quite my experience. Under his old name I had contact to him and and even bought 1-2 parts (at the time the prices were not as impudent as today). Unfortunatly, the email address is no longer valid.

HP-Collection · 04-11-2017, 11:16 AM

Finally I can publish a first release of the HP-75C/D database.....