Help needed identifying boards

From: Joe R. <rigdonj_at_cfl.rr.com>
Date: Tue Feb 17 15:24:44 2004

At 01:40 PM 2/17/04 -0500, you wrote:
>On Tuesday 17 February 2004 13:24, John Lawson wrote:
>> On Tue, 17 Feb 2004, Patrick Finnegan wrote:
>> > So does this mean no one has a clue what any of these are?...
>>
>> Let's see, Mr. Holmes....
>>
>> The DC1127 is clearly marked (fuzzy photos notwithstanding) "Dual 8
>> Bit Latch" on it's reverse.
>>
>> Might be a dual 8-bit latch of some kind...
>
>Thanks, but I think I've figured out that much already, Dr. Watson. I'd
>like to know *who* might have made or used them... I'm somewhat
>tempted to use some of those to build something out of, since the
>connector is a 2x22 pin 0.156" spacing edge, which connectors are
>'avalaible' for.
>
>As far as fuzziness goes, I'm going to blame my camera... it seems to
>suck for close-up/macro shots. If I weren't so lazy, I probably could
>hook up the scanner and put these on it.
>
>> The 66500 board says 'FDU Control' - Fixed Disk Unit? it has addr
>> and write enable switches... looks like a late 70s - early 80s era
>> HP disc I/O - for embedded test - network analyzers - ???
>>
>>
>> The rest of the photos are so badly lit and out of focus that I
>> can't make out the designations - on the 6119 board - there is a
>> crystal (the oblong tin can) in the upper left corner - above that is
>> some writing - what does it say?
>
>It's the text in the file name:
>
>(HP logo) 02116-6119
>H 741 6
>
>On the handles are "TIME BASE GEN" and "A".


  That's what it is then, a Time Base Generator for the HP 1000s. It was
used for the same purposes that you'd use a clock/timer circuit for in a
modern computer. In other words, generating interrupts, timing events,
controlling external devices etc. I'm about 99 1/2% certain that the manual
is on Al's site.


>
>For the other similarly shaped card (12604-600001), there's labels stuck
>near the part number that say "1046A" and "03142" and on one of the
>handles is printed "HP DATA".

   I'm not sure what that is. My guess is that it's a data interface
probably for something like a PT reader or punch or maybe the I/O expansion
chassis. But again go look at the HP manuals on Al's site.

   Joe
Received on Tue Feb 17 2004 - 15:24:44 GMT