Hi guys, I'm looking for the schematic of a Boonton 91-B RF Voltmeter. I can find many other 91 series schematics but not the 91-B. It would make my job easier with the correct schematic. Any leads? Thanks, Mikek
P.S. To Jeff, This is a tube model, I heeded your advice, I'm using an isolation transformer.
problem; I have one calibration pot (1V range) that has very little effect. The others have about a 30% range, this one maybe 1%.