VINTAGE VACUUM TUBES • TESTED ELECTRONICS
RCA 6K6GT
INDIVIDUALLY BENCH TESTED | B&K PRECISION MODEL 747
01 / Test results
B&K 747 readings
2 tubes tested on a B&K Precision Model 747
|
1
Tube #71
RCA 6K6GT
|
SEC 1
102
NOS
Date: Oct 19, 2026
|
|
2
Tube #1246
RCA 6K6GT
|
SEC 1
88
GOOD
Shorts: No shorts indicated · Grid: No reject indication · Date: Oct 25, 2026
|
These are numerical readings from a B&K 747 tube tester using the applicable tube-chart setup. They are comparative tester readings, not direct micromhos (µmhos) values or percentages of original performance. On this scale, 55 is the minimum acceptable reading, and 90+ is considered new old stock (NOS) performance.
02 / The tubes
Details & condition
| Manufacturer | RCA |
| Tube type | 6K6GT |
| Quantity | Lot of 2 vacuum tubes |
| Condition | Vintage / used; bench tested |
| Packaging included | As shown in photos |
Please inspect the photos for cosmetic condition, lettering, and glass appearance.
Noise and microphonics have not been evaluated in an operating audio circuit.
The photos show the actual tube(s) included in this sale.
03 / Shipping & policies
Packed with care
The tube(s) will be protected with cushioning and packaged in a sturdy shipping box to reduce the risk of transit damage.
Returns & shipment issues
Returns are not accepted for change of mind or ordering the wrong item. If an item arrives damaged or does not match the listing description, please contact me through eBay so the issue can be addressed promptly in accordance with eBay's Money Back Guarantee policies.
Vintage vacuum tubes may vary in behavior between circuits. Bench test results describe the tube at the time of testing and do not establish remaining service life. Please review all item photos and the stated readings before purchasing.
Inventory code: Z98
VINTAGE ELECTRONICS • TEST RESULTS PROVIDED