[Jayce]

I've always heard that rectifier tubes are either good or they are bad. Basically, they either work or they don't. I don't know why, but the tester I used to have and others always show one side of an 80 as being weaker than the other. 48/53 isn't a big split and that tube should last a good while longer. If one radio doesn't like it, another one of your radios might. I've had that happen as well.