Help with PCB ID
derschjo at gmail.com
Sat Mar 13 13:51:07 CST 2021
On Sat, Mar 13, 2021 at 11:43 AM Cory Heisterkamp via cctalk <
cctalk at 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
My guess is it's a logic board from a Beehive International terminal. No
idea what model though.
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