1950's RCA 12SN7GT Tubes, Matched Pair, NOS/NIB, Tested
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1950's RCA 12SN7GT Tubes, Matched Pair, NOS/NIB, Tested
These tubes have black ladder plates and D getters. Date codes are from the mid 1950's.
These were tested on my Dan Nelson calibrated TV-7/U. They have been tested for shorts, gas, and transconductance. The tubes test with readings of 99/97 and 94/98. Minimum is 50.
They have been sonically tested in my homebuilt pre-amp and are dead quiet with no microphonics.
Tubes are described, tested, and presented to the best of my ability, subject to the limitations of the equipment that I have available (Hickok 539C and several TV-7’s). Test results are likely to vary some between your equipment and mine due to the imprecise nature of 60-year-old consumer-grade test equipment.
About me. I have over 62 years of experience in many facets of electronics design and repair. I have been working with tubes since I was 12 years old. I am an active ham radio operator and have been for 62 years. I’m a retired electrical engineer with 30 years in the Semiconductor industry. I’ve been collecting, buying, and selling tubes and other tube based equipment since the 1980s, and have been a Reverb seller since 2020. The pictures you see are of the actual tube(s) you’ll receive.
I will ship international.
Don't see the tubes you are looking for? Contact me and I may be able to help you.
| Listed | 3 months ago |
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| Condition | Excellent (Used) Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more |
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