RCA5693 6SJ7 6SJ7GTRCA 5693 6SJ7 6SJ7GT Red Tubes, Matched Pair, NOS, NIB, TestedHello – I have a matched pair of Red RCA 5693 6SJ7 Tubes for sale. These are NOS and new in the box tubes. The RCA "Special Red" tubes (5690, 5691, 5692, 5693) were designed for 10,000 hours ...75.00

RCA 5693 6SJ7 6SJ7GT Red Tubes, Matched Pair, NOS, NIB, Tested [Expired]


no longer for sale

Hello – I have a matched pair of Red RCA 5693 6SJ7 Tubes for sale. These are NOS and new in the box tubes. The RCA "Special Red" tubes (5690, 5691, 5692, 5693) were designed for 10,000 hours of use. RCA claimed the 5693 tube could withstand shocks of 100 G's for extended periods of time! The 5693 is a direct replacement for the 6SJ7. They have matching 1956 date codes. TV-7/B test results: 75 and 70. Minimum is 40. 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. 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 $14.00 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.