Gassy Old Things (Failed Tubes)

Gassy Tube

 

                                                                                                 One of the questions I am frequently asked is, "What does a gassy tube look like?"   
Above is a good example. This is a gassy 224 tube under test. It has failed due to gas leaks. 

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Old Paper Foil Capacitor

Paper foil capacitors fail when the waxed paper between the foil
elements breaks down allowing DC voltage to “leak” between the foil
wraps.

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These are a couple of possible failures, although other things may also go wrong. If you have any questions or comments, please contact me. I'd be interested to hear from you.

Till next time....

Regards,

Russ
phlog's blog