[Radio Wrangler]

I think the bond wires were selectively applied with the thing running in a test jig. The two capacitive squares near the 200 Ohm resistor and the collector of the transistor (and HP21 die perhaps?) would be bonded into circuit as needed.

Thus the part only goes under the microscope once and only the minimum number of bonds are made - saves time and gold wire.

I used to be able to fix things like this. Had the facilities available. You don't value things until you lose them.

David