Matched Pair Sylvania 7N7 Vacuum Tubes 6GT5 Compactron This Arcturus type 76 triode

This Arcturus type 76 triode was tested on our Paul Hart-calibrated TV7/U for shorts

perfectly-balanced Mullard EZ80 / 6V4 rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

5 milliamps' plate current and measured 2760 micromhos

Etsy will indicate the number available in this Dutch Auction

Matched Pair Sylvania 7N7 Vacuum Tubes 6GT5 Compactron This Arcturus type 76 triodeThis matched pair of Sylvania 7N7 dual triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and they tested as follows: Tube One: 71 69 and; Tube Two: 71 74 (Minimum (65%) is 50 50 and 100% is 77 77. They have black wing plates, beautiful flashing and round bottom mica spacers. I have played them (with adapters, not included) in my AC heated Radio Craftsmen RC 2 mono block amplifiers