Matched Pair General Electric GE Nickel Plate 6AU6 Vacuum Tubes Valves 6L7 Gebraucht This new old stock-testing matched

This new old stock-testing matched pair of Philips Miniwatt PCF80 / 9U8 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

They have engraved bases

5 out of 10

It is also autographed by Mr

This lot of three Raytheon 12AX4GT / 12AX4GTA / 12AX4GTB tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair General Electric GE Nickel Plate 6AU6 Vacuum Tubes Valves 6L7 Gebraucht This new old stock-testing matchedThis 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