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Antique Radio Technical Forum
Tubes That Test High

Posted by It's All Relative on 04/06/2009 00:05

Tube testing is about as inexact a process as anything you're likely to come across. The best you can do is to get familiar with how your own tester works and apply windage to the results.

:Hi! I was wondering why when testing a batch of tubes of the same number, one tube in the batch will read past the end of the scale while the others read normal? This happens on two different testers. The tube past the shorts test on both testers and it also past the gas test. Is there a rule of thumb on how high a tube can read past average before it is considered defective? Is there any thing that can be done to the tube to get to read within scale? Thanks for any info. Bob Masse



Tubes That Test High 
Bob Masse 04/05/2009 11:40 
Thomas Dermody 04/05/2009 14:31 
easyrider8 04/05/2009 18:22 
Bob Masse 04/05/2009 18:53 
Bob Masse 04/05/2009 21:11 
Thomas Dermody 04/05/2009 23:13 
It's All Relative 04/06/2009 00:05 
easyrider8 04/06/2009 02:27 
Why Bother? 04/06/2009 12:54 

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