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Testing Model 20 tubes - Hickok 539A
amosbanjo
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Posts: 3
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03-28-2011, 06:56 PM
I dug out my old Hickok 539A tube tester to check tubes on the Philco model 20 that I am restoring. There were settings for 80 rectifier, but no settings on the chart for 27's, 24's, or 71A's. Does anyone happen to have these settings available for this tester?
Thanx.
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Testing Model 20 tubes - Hickok 539A - by amosbanjo - 03-28-2011, 06:56 PM



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