New member introduction, questions on HP 21XX series machines,reliability and maintainability

From: Joe <rigdonj_at_cfl.rr.com>
Date: Thu Oct 30 07:17:28 2003

At 09:25 PM 10/29/03 -0600, you wrote:

>>How available are contemporary replacements
>> and/or new old stock for the ICs?
>The bus driver IC's (DTL if I remember right) are scarce... BUT... there are
>so many 21MX's still in production use, most cards are plentiful, as are
>thus dead cards with bus chips that can be snagged. Microcode and boot roms
>(blank) are not impossible to find, but a bit scarce.
>more problematic.
>

   We're working on that. I've found a stash of old **UNPROGRAMMED** PROMs
and I have a programmer that can program them but I need the correct
plug-in unit for it. Once I find one I think we'll be home free.

   While I'm at it I might as well post my plea for the programming module
aagin.

   I picked up a couple of Pro-Log M900, M920 and M980 programmers lately.
I want to burn some BiPolar PROMs and I need a Pro-Log PM 9048 "Intel
Generic" personality module. It will look something like this
<http://www.classiccmp.org/hp/pro-log/person-harris.jpg>. I'm also looking
for other Pro-Log parts and I have parts to trade so if you have anything
that you're willing to part with send me a list. Here's more pictures on
my Pro-Log stuff. No text or descriptions yet, just pictures.
<http://www.classiccmp.org/hp/pro-log/>


   Joe
Received on Thu Oct 30 2003 - 07:17:28 GMT

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