Majestic Radio Tube Type 31 Vacuum Tube 539C Test NOS NIB π
USD 15.99 USD
Specifications
| Brand | Majestic |
| MPN | Type 31 |
Mutual Conductance (GM)Test: 42.7 ( 29 = NOS AVERAGE & 19 = Good MINIMUM). Test results will vary between testers as it is not an exact science. I also use variac at 120 volts with my testers.
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