On 13.03.21 20:43, Cory Heisterkamp via cctalk wrote:
I’m wondering if anyone recognizes this PCB. Double-sided, 74xx vintage,
measuring 14”x15”. There’s a “B.I.” logo in one corner, but no google match. IC
date codes are ’77/’78 vintage.
There’s a pair of DB-25’s, a BCD encoder, and for some reason, two pots. DC
rectification appears to take place onboard. I thought perhaps the 112-7753
marking might be a part or catalog number, however the flip side is marked
112-1754, so perhaps not.
Anyone recognize it? -Cory
https://photos.app.goo.gl/dogAPxn7vLV87YRw9
The exact same board is currently laying on my bench awaiting repair.
It comes out a Cromemco 3101, which is indeed a rebadged Beehive B100
Jos
