Matched Pair National Union JAN-CNU-6V6-GT VT107A 6V6 6V6GT Vacuum Tubes Milspec Gray Glass Trigon NOS NIB These nine tubes were tested

These nine tubes were tested on our Paul Hart-calibrated TV7 for shorts

Magnavox-LABELLED 6CW5 tube tested to spec on our Paul Hart-calibrated TV7/U

I have played it in my Bottlehead Crack headphone amp and it sounds great

Wish I knew who actually made them

Matched Pair National Union JAN-CNU-6V6-GT VT107A 6V6 6V6GT Vacuum Tubes Milspec Gray Glass Trigon NOS NIB These nine tubes were testedThis matched pair of milspec National Union VT 107 A JAN CNU 6V6 GT gray glass output tubes was tested on our Maxi Matcher 2 with 400 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 2230 micromhos for Tube One (Missing centering pin, marked for safe and easy insertion; see close up, Picture Three) and 2500 for Tube Two (Cracked base, tube itself neverless solidly