Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes NOS-Testing July 30 2023 top to bottom) 39

top to bottom) 39

5 record cleaner and then played it on my He-Man Rig which consists of a Rega Planar Three with an Ortofon X5-MC cartridge on an RB-300 tone arm with a Cern Audio Dual 6SN7 / 6SL7 phono preamp / preamp feeding my Bottlehead Crack headphone amplifer driving Sennheaiser HD 580 cans

new in box Hytron 6AD7G tube tested to spec on our Paul Hart-calibrated TV7/U

It measured 1680 micromhos and drew 19

They measured 55/56

Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes NOS-Testing July 30 2023 top to bottom) 39This new old stock TESTING matched pair of RCA 6FQ7 6CG7 dual triodes was tested on our TV7 U for shorts, gas and transconductance. There were no shorts or gas and their readings are as follows: Tube One measured 75 86 while Tube Two measured 79 79 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have steel support rods; ladder plates and side D getters. I played them with adapters (not included) in my Radio Craftsmen RC 2 monoblocks and