RCA 5751 12AX7 ECC83RCA  5751 12AX7 ECC83 Triple Mica Black Plate Tubes, Matched Pair, Tested -1956Hello – I have a matched pair of RCA 5751 12AX7 ECC83 triple mica tubes for sale. These tubes have triple mica construction, dual steel support rods to help minimize microphonics, black plates, "D...100.00

RCA 5751 12AX7 ECC83 Triple Mica Black Plate Tubes, Matched Pair, Tested -1956 [Expired]


no longer for sale

Hello – I have a matched pair of RCA 5751 12AX7 ECC83 triple mica tubes for sale. These tubes have triple mica construction, dual steel support rods to help minimize microphonics, black plates, "D" getters. They have 1956 date codes. These are NOS testing tubes. TV-/B Test Results: 48/48 and 48/50. Minimum is 32. They have also been checked for noise and microphonics in the phono stage of my Fisher 800B and are dead quiet. All tubes are tested on my Dan Nelson 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 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 $15.00 and international shipping by first class is $18.00. Your tubes will be carefully packed. No charge for paypal. Please check my feedback and buy with confidence.