Matched Pair General Electric GE Nickel Plate 6AU6 Vacuum Tubes Valves 6L7 Gebraucht This milspec CBS-Hytron USN-CHY-5Y3WGTA /

This milspec CBS-Hytron USN-CHY-5Y3WGTA / 5Y3 black plate rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

They have shoulder / ST / Coke-bottle bottles and dimpled-sheet getters

new in box CBS 12DB5 tube tested to spec on our Paul Hart-calibrated TV7/U

They have engraved bases

Matched Pair General Electric GE Nickel Plate 6AU6 Vacuum Tubes Valves 6L7 Gebraucht This milspec CBS-Hytron USN-CHY-5Y3WGTA /This perfectly matched pair of GE nickel plate 6AU6 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Both measured 72 where minimum (65%) is 58. These tubes have top, harp getters; nickel plates and excellent flashing. I am playing them in my Musical Paradise MC 3 single ended integrated amplifier (with adapters, not included) with Aimee Mann's seminal "Magnolia" album and they sound