10 US-Made 6K6 6K6GT Vacuum Tubes Valves Lot Of Ten Silver Tops Black And Silver This black plate GE 5Y3GT

This black plate GE 5Y3GT rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

This Wards type 78 tube tested to spec on our Paul Hart-calibrated TV7/U

new in box Matsushita-MANUFACTURED

" "A Large Village On My Way

Tube Five: 25

10 US-Made 6K6 6K6GT Vacuum Tubes Valves Lot Of Ten Silver Tops Black And Silver This black plate GE 5Y3GTThese ten US made 6K6GT tubes were tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of 36 volts for shorts, gas, plate current and transconductance. There were no shorts or gas and they measured as follows (from left to right, top to bottom): Tube One: 20. 2 milliamps' plate current 1810 micromhos; Tube Two: 22. 4 1850; Tube Three: 23. 8 1920; Tube Four: 25. 4 1910; Tube Five: 29. 8 2240; Tube Six: 30. 2 1800; Tube Seven: 30. 8