Title: Pair of used 5U4-GB Vacuum Tubes
Item: [5U4-10] $10.00

Title: Pair of used 5U4-GB Vacuum Tubes
Item: [5U4-10] $10.00

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Here is a pair of used 5U4-GB Amplifier Rectifier Tubes.
One is from Cornell the other is from Sylvania.

The tubes are used but have very strong readings. See test results below.

5U4-GB, GT, Full-Wave High-Vacuum Rectifier, Cornell, Used, emission 95%/95%, cat 401-436
5U4-GB, GT, Full-Wave High-Vacuum Rectifier, Sylvania, Used, emission 105%/100%, US Navy, cat 402-20

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