I have quite a few multimeters ... old-electronics smell of phenolic resin, and suddenly I have the urge to work on a vacuum tube TV from the 1950s again. It’s clear then that the AVO remains ...

I can guarantee that all of the enginneers working on Radar in WW2 would have depended on it to set up many features of the system The engineers that followed would all have used the AVO in its ...