When I worked on the 8660's and plugins more than 25 years ago, I had short lengths of bus wires with smaller gauge wire soldered to them and then they covered with heat shrink.? This allowed connections to be made with the boards inserted and with their covers secured.? ?With the lighter gauge wire soldered along side the heavier gauge wire, this created a shoulder that kept these probes from falling inside.? ?All I can remember was using a scope to adjust to adjust a waveform for symmetry as the frequency was stepped.? ?
