3 Westinghouse Black Plate 6CG7 6FQ7 Vacuum Tubes With Shields Lot Of Three Facades Suites

3 Westinghouse Black Plate 6CG7 6FQ7 Vacuum Tubes With Shields Lot Of Three Facades SuitesThis trio of Westinghouse black plate 6CG7 6FQ7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measure as follows: 66 65, 72 76 and 92 90 where minimum (65%) is 50 50 and 100% is 77 77 These tubes have copper support rods; top, harp shaped getters and shields between the triodes for reduced cross talk. I have played them with adapters (not included) in my Radio

These six new old stock

new in box CBS-Hytron 12BZ7 tube tested to spec on our TV7/U

respectively

Transconductance measured 57 for Tube One and 65 for Tube Two where minimum (65%) is 36 and 100% is 55

WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES

new in box CBS 12DB5 tube tested to spec on our Paul Hart-calibrated TV7/U

(New US-made 6V6s typically test with plate current from the mid-teens to mid 30s with transconductance from 2300 micromhos or so

new in box RCA 6BN4A tubes tested to spec on our Paul Hart-calibrated TV7/U

5 record cleaner and then played it on my Rega Planar 3

I am playing it in Bottlehead Crack headphone amplifier as a 12AU7 substitute and it sounds fine

perfectly-matched pair of RCA black plate

outstanding flashing