With the help of Mats Karlsson I think we have identified the circuit
as the Quad Eight AM10 Discrete Operational Amplifier.

I got the photos off the units off of eBay auctions.

There are two copies of the schematic now, one showing voltages!

email me here

Schematic of the above op amp showing test voltages!
Provided by Mats.

Not so clear schematic of the above module