Amperex JAN 6688 Gold Pin 3MICA Black Plate Vacuum Tube 539C Test NOS NIB🔊
USD 9.99 USD
Specifications
| Brand | Amperex |
| Type | Vacuum Tube |
| Model | 6688 |
| Country Of Origin | United States |
Strong NOS! Gas (Grid Current)Test: Passed. Mutual Conductance (GM)Test: 93.9 (72 = NOS AVERAGE & 47 = Good MINIMUM). Test results will vary between testers as it is not an exact science and all testers have their limitations.
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