[charlie fitton]

Originally Posted by RHClarke

.....were treated to a tube testing session where Bob made good use of his test kit. Once a tube was identified, Bob went to the guide in the test kit and made the requiste switch settings. Most of the tubes tested were usable, but a few had deteriorated.....

I used to do this with my dear ol' Dad many years ago. We'd take a whack of tubes to the corner store, use every trick to find the serial numbers, cross reference to the catalogue, set the machine, test the tube, label and pack them away.

fond memory - thanks