Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes MSR but the time can be

but the time can be set

67 and 74 where minimum (65%) is 53

This nearly-perfectly-matched pair of GE 6SJ7s was tested on our Paul Hart-calibrated TV7/U for shorts

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

new in box RCA 12Z3 tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes MSR but the time can beThis 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 66 53 while Tube Two measured 67 57 where minimum (65%) is 50 50. 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 they sounded great even though they test