Matched Pair General Electric GE Black Plate 6CG7 6FQ7 Vacuum Tubes With Shields Twentyseven TV7 PLEASE ALSO SEE OUT ETSY

PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHELEC" AND/OR CALL OR TEXT US AT 202-372-6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS

new in box Amperex 6R3 / EY8 tubes tested to spec on our Paul Hart-calibrated TV7/U

There were no shorts or gas and they tested as follows:

(New 6SN7s typically test from 2600 micromhos and the Jackson expresses this in terms of a percentage

new in box Zenith 17AY3 / 17AY3A / 17BS3 / 17BS3A tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE Black Plate 6CG7 6FQ7 Vacuum Tubes With Shields Twentyseven TV7 PLEASE ALSO SEE OUT ETSYThis pair of GE 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. Tube One measured 61 60 while Tube Two measured 68 68 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have steel support rods and top, harp shaped getters and anode radiators for cooler operation and longer tube life. There is also a shield between the triodes for reduced cross