From: Denham Springs, La.
Registered: Oct 2011
posted January 26, 2012 08:53 AM
Tommy - Replace the value with a new one. Testers are not real accurate. I have two very good testers, uaually when they say bad ,the valve is bad , when they say good it MIGHT be good. I have been a ham radio operator for over 50 years,and have tested many many valves(tubes). They glow in the dark !
From: Bothell, WA, USA
Registered: Mar 2010
posted January 26, 2012 03:23 PM
You can find them on ebay that say they have been "tested". It's hard to figure out which one is bad when you don't have a tester handy. I usually look at the visible condition and start with the ones I think are most likely to be bad. I just fixed an old radio that way but I had a box of tubes that I picked up at an estate sale and just started swapping them out until it worked.