RCA Clear Top Red Tip Low Noise 6CG7 6FQ7 Vacuum Tube With Shields Number perfectly-matched pair of RCA black

perfectly-matched pair of RCA black plate

two Hytrons and one Sylvania

6 milliamps' plate current while Tube Two drew 18

It is dead quiet when the preamp is muted and has excellent frequency response and sound-staging

RCA Clear Top Red Tip Low Noise 6CG7 6FQ7 Vacuum Tube With Shields Number perfectly-matched pair of RCA blackThis new old stock testing RCA clear top, red tip (low noise) 6CG7 6FQ7 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 82 91 where minimum (65%) is 50 50 and 100% is 77 77. This tube has steel support rods; a side D; a clear top with red paint (indicating it is a selected, low noise tube; gray plates and excellent flashing. There is a shield between the triodes