Amperex Bugle Boy 12AU7 12AU7A ECC82 Vacuum Tube Steel Support Rods 6BL7GT RC2 new in box Zenith 2BU2

new in box Zenith 2BU2 / 2AS2 / 2AS2A / 2AH2 tested to spec on our Paul Hart-calibrated TV7/U

This lot of three RCA-Victor gray glass 50L6GT tubes was tested on our Paul Hart-calibrated TV7/U for shorts

5 record cleaner and then played it on my Rega Planar 1

mesh plate tubes both tested 32 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25 and 100% is 38

black plates and nice hot-stamped bases

Amperex Bugle Boy 12AU7 12AU7A ECC82 Vacuum Tube Steel Support Rods 6BL7GT RC2 new in box Zenith 2BU2This Amperex Bugle Boy 12AU7A ECC82 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured a nicely balanced 62 60 where minimum (65%) is 56 56 and 100% is 87 87. It has gray 12MM plates; steel support rods; a sutured top; excellent flashing; a wisp of the Bugle Boy logo and a top O getter. I have played it in my Bottlehead headphone amplifier and it sounds