RCA 12AU7 12AU7A ECC82 Vacuum Tube NOS-Testing Black Plate Slant D Getter For Your Univalve Or Bottlehead VR150 T31 5 record cleaner and am

5 record cleaner and am playing it as I write on my Rega Planar 1

There were no shorts or gas and it measured / where minimum (65%) is 40/40 and 100% is 62/62

and as I test new-in-box 5963s

I am playing them as I write in my Radio Craftsmen RC-2 monoblocks with RCA Living Stereo's CD of Bartok's "Concerto For Orchestra

RCA 12AU7 12AU7A ECC82 Vacuum Tube NOS-Testing Black Plate Slant D Getter For Your Univalve Or Bottlehead VR150 T31 5 record cleaner and amThis new old stock testing RCA black plate 12AU7A dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. This tube has 17MM black plates; a slant D getter; steel support rods and nice flashing. It measured 70 82 where minimum (65%) is 56 56. I have played it in my Bottlehead Crack headphone amplifier and it sounds terrific. It is dead quiet when the volume is muted and has excellent