On Sat, Mar 13, 2021 at 11:43 AM Cory Heisterkamp via cctalk < cctalk@classiccmp.org> 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 > > My guess is it's a logic board from a Beehive International terminal. No idea what model though. - Josh
