8 May
2005
8 May
'05
8:10 a.m.
On 5/7/05, Eric Smith <eric at brouhaha.com> wrote:
Charles wrote:
Well... given that there are no connections whatsoever on the front to
the signals on the 'F' finger, and only a few (power and ground) on
'E', that resembles a hex-height OMNBUS layout. The fact that the
off-board connectors are by the 'F' finger is also suggestive of a
PDP-8/a OMNIBUS (Unibus cards would have a Unibus connector there; the
PDP-8/a chassis has a hole out the back, and no backplane connectors
on 'F')
The presence of the 2114s and 2016s (SRAM) plus the individual gold
coax connectors suggests to me that this is a frame buffer. Perhaps
you could hook an o-scope to one or two of the leads and apply
voltages to the board and see if it pumps out anything that resembles
sync signals.
Never seen this board before; I'll be curious to hear what you find.
-ethan
But there
is no manufacturer's info except what looks like "K-3VO" in the
lower left corner,
I don't even have a SWAG as to what that card is. I'm a little dubious
about it belonging in a PDP-8/a, but I suppose anything is possible.