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Re: Testing a 6528A Tube

The pinout is the same as 6AS7/6080 (or 6SN7 for that matter) but don't just plug it in! I don't think many commercial testers would be able to delivery 6.3v@5A filament.

You could make up a jig, and supply the filament to pins 7/8 using an external power supply. Then it would be a matter of working out some "normal values".



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