RCA GE etc. 1 (ONE) 6X4 EZ90 audio tNOS radio amplifier vintage vacuum tube rectifier 1946-1965
Our users rate Reverb
This listing is for one 6X4 full-wave rectifier vacuum tube that tests NOS for both sections on our Knight 600A tube tester. This means that it is within 20% of bogey values. It has also passed shorts tests on each section. The photo is our stock photo. Brands we have in stock include RCA, Tung-Sol, GE, Westinghouse, Raytheon and Sylvania, including various OEM branding from those makes. Our stock includes black and grey plates. Quantity available.
Most of our tubes are tested with one of our Amplitrex AT1000, but the AT1000 cannot natively test the 6X4. Therefore, these are tested on our 2022-calibrated Knight 600A tube tester from 1969. Since we have not calibrated your tester, we cannot guarantee that they will test the same on your tester. However, all tubes sold by Sound By Doc are guaranteed against failure for 60 days!
If an original box is important to you please offer an extra $2.
| Listed | 2 years ago |
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| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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