[R-390] Hickok Tube Tester Calibration

[Barry Scott]

I'm in the process of refurbishing my Hickok 752A and I have a general
question regarding the calibration procedures.

All voltage measurements are supposed to be taken with a 1000 ohm/volt
meter and I don't have a meter like that.

>From what I understand, if one measures, for example, 150VDC with a
1000 ohm/volt meter, then the meter is placing a 1,000 ohms/volt x 150
volts = 150,000 ohms load to the circuit being measured.  Using a
20,000 ohms/volt meter would only present a 3 megohm load for 150
volts which is significantly different and result in a higher reading
for that same 150 volts.

Is there a way to "mimic" a 1,000 ohms/volt meter with a meter with a
much higher sensitivity?  The closest meters I have are 20,000
ohms/volt so looking for some suggestions.

Thanks,
Barry - N4BUQ