17 Feb
2004
17 Feb
'04
10:24 a.m.
At 01:40 PM 2/17/04 -0500, you wrote:
On Tuesday 17 February 2004 13:24, John Lawson wrote:
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.
On Tue, 17 Feb 2004, Patrick Finnegan wrote:
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.
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... 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".
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