I'm looking for general advice when testing rectifier tubes. I have a 5AR4 that may or may not be good. I seem to recall it is an out of box failure.
I have a Hickok 800A tube tester. I know how to set it up and test the tube, but I remember reading somewhere a bad rectifier tube can ruin a good tube tester. Can anyone confirm this is correct?
Is there a safe way / best practice to test a rectifier tube. I really don't want to put it in an amp and check it either.
Thanks.