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Pair of National Union 01AA Vacuum Tubes - Used - Fully Tested (Item: RDW-109)
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Product Description
Pair of National Union 01AA vacuum tubes, globe style with engraved bases. These are essentially same as the 01A but with different filament construction. Both fully tested and test strong on Hickok AN/USM-118B tube tester - both at 4.2 ma. (scale of 100) with baseline acceptable of 2.1 ma. (scale 50). Each tube will be packaged in white tube box.