Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes February 24 2026 Tube One measured 42 in

Tube One measured 42 in its triode section where minimum (65%) is 25 and 100% is 39

Transconductance measured 2000/1900 micromhos for Tube One and 2000/2000 micromhos for Tube Two

The title says it all

US-made 7C7 tubes in this lot

This pressing has lightl surface noise audible in quiet passages and barely-audible in voice-level passages

Matched Pair RCA 6FQ7 / 6CG7 Vacuum Tubes February 24 2026 Tube One measured 42 inThis 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 56 58 while Tube Two measured 59 56 where minimum (65%) is 50 50 and 100% is 77 77. These tubes have steel support rods; ladder plates; side D getters and excellent flashing. As I write, I am playing them with adapters (not included) in my Alan Eaton single ended