Matched Pair General Electric GE Nickel Plate 6AU6 Vacuum Tubes Valves 6L7 Gebraucht but with some wear

but with some wear

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

There were made by Sovtek's predecessor during The Cold War and

This RCA 807 output tube was tested with adapters on our Maxi-Matcher 2 for shorts

Matched Pair General Electric GE Nickel Plate 6AU6 Vacuum Tubes Valves 6L7 Gebraucht but with some wearThis 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