01-13-2014, 10:05 PM
Look for 201 or 301. I have a hickock and a knight that both test them. Try the B.A.M.A. site for obsolete tube manuals for your tester.
Testing 01A tubes
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Testing 01A tubes - by 37silverstreak - 01-13-2014, 09:38 PM
RE: Testing 01A tubes - by tab10672 - 01-13-2014, 10:05 PM
RE: Testing 01A tubes - by tab10672 - 01-13-2014, 10:12 PM
RE: Testing 01A tubes - by tab10672 - 01-13-2014, 10:14 PM
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