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Blaine

01-23-2009, 11:40 PM
Looking for some information on how to test a 12BY7 on this Philco tube tester. I have the roll charts that came with the tester but it doesn't have this tube listed. Did Philco ever come up with an updated set of charts for the newer tubes.
Thanks for your help.
The PHILCO Phorum > Philco Radio Discussions > Philco Electronic Restoration > Tube tester model 7051