Matched Pair Raytheon 6V6 / 6V6GTY / JAN-CRP-6V6GTY / 6P6 / 6P6P Vacuum Tubes Valves Milspec Gray Bottle Black Plates Micanol Bases Matsushita LCL82 Realistic / Radio Shack-BRANDED 12AU6

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

(New US 6L6GCs typically test with plate current from the low 20s to mid 30s with transconductance from 2200 micromhos or so

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

It teats below spec but should work fine in many applications

Matched Pair Raytheon 6V6 / 6V6GTY / JAN-CRP-6V6GTY / 6P6 / 6P6P Vacuum Tubes Valves Milspec Gray Bottle Black Plates Micanol Bases Matsushita LCL82 Realistic / Radio Shack-BRANDED 12AU6This 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