GE Ken-Rad6SN7GTA 6SN7 ECC33GE Ken-Rad 6SN7GTA 6SN7 ECC33 Black Plate Tubes, Matched Quad, Test NOS, RareHello – I have a matched quad of rare 1950's GE/Ken-Rad 6SN7GTA ECC33 black plate tubes for sale. These tubes test as NOS tubes. These tubes have black ladder plates with side mount double bar “D...150.00

GE Ken-Rad 6SN7GTA 6SN7 ECC33 Black Plate Tubes, Matched Quad, Test NOS, Rare [Expired]


no longer for sale

Hello – I have a matched quad of rare 1950's GE/Ken-Rad 6SN7GTA ECC33 black plate tubes for sale. These tubes test as NOS tubes. These tubes have black ladder plates with side mount double bar “D” getters. Date codes are from 1951. They were built in the Ken-Rad factory which had just been purchased by GE TV-7/B test results: 105/105, 105/105, 105/100 and 100/95. Minimum is 50. They have also been checked for noise and microphonics in the phono stage of my DIY pre-amp and are dead quiet. All tubes are tested on my calibrated TV-7/B or on my calibrated Hickok 539C. All of these tubes have been tested for transconductance, shorts, gas, leakage and life. All tubes meet or exceed manufacturer published specifications of transconductance (Gm) for the specified tube type. All tests are tested twice – prior to the listing and prior to shipping. Please e-mail me if you have any questions or you may call me at 602-803-6290. Please check out my other ad’s on Audiogon. If you don’t see the tubes you are looking for, please contact me. Be sure and click on the “other items’ link for more tubes. I will ship international. Free shipping in the USA. Canadian shipping is $20.00 and international shipping by first class is $24.00. Your tubes will be carefully packed. No charge for paypal. I also accept money orders and personal checks. Please check my feedback and buy with confidence.