Richard ?do your DVM’s have an isolation probe for capacitance decoupling back to the DOT? ???

Resistance of DVMs can be? very high, but ?test wires have capacitance that will ?mess with tuned circuits as the LO.? Halli sometimes indicated which pins can be measured with only a VTVM , but the S-20R on Bama has no chart and the schematic I see is mostly not readable.

?