Matched Pair Raytheon 6V6 / 6V6GTY / JAN-CRP-6V6GTY / 6P6 / 6P6P Vacuum Tubes Valves Milspec Gray Bottle Black Plates Micanol Bases Matsushita LCL82 These three milspec GE 12SG7

These three milspec GE 12SG7 / JAN-CG-12SG7 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

copper support rods and gray plates

Realistic / Radio Shack-BRANDED 12AU6 tube tested to spec on our Paul Hart-calibrated TV7/U

both with current readings of 34 and transconductance of 3520

They tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair Raytheon 6V6 / 6V6GTY / JAN-CRP-6V6GTY / 6P6 / 6P6P Vacuum Tubes Valves Milspec Gray Bottle Black Plates Micanol Bases Matsushita LCL82 These three milspec GE 12SG7This matched pair of milspec Raytheon gray bottle 6V6GTY JAN CRP 6V6GTY output tubes was tested on our Maxi Matcher with 400 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas. Tube One drew 18. 8 milliamps' plate current with a transconductance reading of 2240 micromhos. Tube Two measured 19. 9 2250. (New US made 6V6s typically test with plate current from the mid teens to mid 30s with