10-03-2016, 09:31 AM
The best tube tester is the radio its self. If the radio works with the glass 6L6s, I would check the B+ voltage to make sure it is not too high because of low emission of the output tubes. If the B+ is within reason, then use your original tubes and keep your original look, they will probably last for many years. Remember, our tube supply is finite.
Steve
Steve
M R Radios C M Tubes