Matched Pair Sylvania 6AU6 6AU6A Vacuum Tubes Valves NOS-Testing Matched Pair 6AX4

Matched Pair Sylvania 6AU6 6AU6A Vacuum Tubes Valves NOS-Testing Matched Pair 6AX4This new old stock testing matched pair of Sylvania 6AU6A tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 74 for Tube One and 76 for Tube Two where minimum (65%) is 58. 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 terrific. These tubes

This Amperex 8020 half-wave rectifier tube was tested on our Paul Hart-calibrated TV7/U

Saint-Saens

anode radiators

280 739 and F1 date codes

new in box matched pair of JJ low noise 12AX7 / ECC83 / 12AU7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

This album sounds very good with a few pops and clicks in the quiet passages — of which there are not many

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000 VACUUM TUBES

This matched pair of RCA 6FQ7 / 6CG7 dual triodes was tested on our TV7/U for shorts

This matched pair of milspec Chatham Electronics 6H6 / JAN-CAHG-6H6-WGT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box (For Tube One) matched pair of Unitron 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

This Tung-Sol 6L6GC was tested on our Maxi Matcher 2 for shorts