Matched Pair Raytheon JAN-CRP-6V6-GT VT107A 6V6 6V6GT Vacuum Tubes Valves Milspec Black Glass New-Testing Engraved Base new in box matched pair

new in box matched pair of JJ low noise 12AX7 / ECC83 / 12AU7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One measured 33 while Tube Two measured 34 where minimum (65%) is 32 and 100% is 49

new in box Trigon UCH81 tube tested to spec on our Paul Hart-calibrated TV7/U

round mica spacers

Matched Pair Raytheon JAN-CRP-6V6-GT VT107A 6V6 6V6GT Vacuum Tubes Valves Milspec Black Glass New-Testing Engraved Base new in box matched pairThis new old stock testing matched pair of milspec Raytheon black glass VT 107 A JAN CRP 6V6 GT 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 and they test as follows: Tube One Plate Current Draw: 25. 2 milliamps Tube Two Transconductance: 2610 Tube Two Plate Current Draw: 27. 9 milliamps Tube Two Transconductance: 2750 (New US made