3 Ken-Rad 6AC7 Vacuum Tubes Valves Lot Of Three

3 Ken-Rad 6AC7 Vacuum Tubes Valves Lot Of ThreeThis lot of three Ken Rad 6AC7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they measured as follows: 41, 46 and 48 where minimum (65%) is 30 and 100% is 47. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. 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.

Transconductance measured 35

" "The Rendezvous

Tube One (GE-MANUFACTURED

This matched pair of Sylvania gray glass 7C5 tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volt for shorts

25 out of 10

As a survivor of Communist East Germany

It measured 68/62 where minimum (65%) is 59/59

Transconductance measured 55 for Tube One and 60 for Tube Two where minimum (65%) is 40

Setchell-Carlson-BOXED 6GV8 / ECL85 tube tested to spec on our Paul Hart-calibrated TV7/U

These nine National Union number / type 27 tubes tested as good on our Paul Hart-calibrated TV7/U

This is an early-production 12AU7

but also have much lower gain