1 National Union Type 37 Hot Stamped Vacuum Tube Tested NOS Calibrated TV – 7
USD 19.95 USD
Specifications
| Brand | National Union |
| Type | Vacuum Tube |
This tube tested NOS on my TV - 7 tube tester. This tester also is used in conjunction with a variac to maintain test results accuracy and consistency. Average new tube value - 36. This tubes tested at - 36.
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