7788/E810F

Matched Pair Amperex JAN 7788 Vacuum Tubes (Item: RDW-484)

Closely matched pair of new old stock Amperex JAN 7788 dual frame grid pentode vacuum tubes. One tube tests 49140 uMhos, the other 50400 uMhos with a baseline of 31500 uMhos. One tests 35.7 ma., the other 34.4 ma. under test condition. In original...