4 Tung-Sol 50L6 50L6GT Vacuum Tubes Valves Black / Gray Glass Lot Of Four Crystal Lewis 1 milliamps

1 milliamps

a clear top

It is dead quiet when the preamp is muted and has excellent frequency response and dynamics even though it tests poorly

These nine tubes were tested on our Paul Hart-calibrated TV7 for shorts

4 Tung-Sol 50L6 50L6GT Vacuum Tubes Valves Black / Gray Glass Lot Of Four Crystal Lewis 1 milliampsThis lot of four Tung Sol coated glass 50L6GT tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. They measured 40, 42, 46 and 54 where minimum (65%) is 45. This new old stock, new in box matched pair of GE 6FQ7 6CG7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 80 80 while Tube Two measured