3 General Electric GE 12J5 Vacuum Tubes Valves Lot Of Three Gray Glass (New 6679s typically test within

(New 6679s typically test within 1

It is dead quiet when the preamp is muted and has excellent frequency response even though this amp was designed for 6SN7s

beefy black plates: three mica spacers for improved mechanical stability and low microphonics

new in box Zenith 25Z5 tubes tested to spec on our Paul Hart-calibrated TV7/U

There were no shorts and the final three tubes on the right might be a bit gassy

3 General Electric GE 12J5 Vacuum Tubes Valves Lot Of Three Gray Glass (New 6679s typically test withinThis lot of three GE 12J5 triodes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 24, 50 and 75 where minimum (65%) is 50. 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. 1. MOST FORMS