Marshall 12AX7 ECC83 Triple Mica Vacuum Tube Gray Silver Bottles new in box Silvertone 6LJ8

new in box Silvertone 6LJ8 tube tested to spec on our Paul Hart-calibrated TV7/U

This West German Amperex-MANUFACTURED

new in box United Electron 31LQ6 tube tested to spec on our Paul Hart-calibrated TV7/U

It had no shorts or gas and measured 52/52 for Tube One and 56/56 for Tube Twoo where minimum (65%) is 40/40 and 100% is 62/62

The default setting is one

Marshall 12AX7 ECC83 Triple Mica Vacuum Tube Gray Silver Bottles new in box Silvertone 6LJ8This Marshall 12AX7 ECC83) dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas and it measured as follows: 40 39 where minimum (65%) is 32 32 and 100% is 49 49. This tube has excellent flashing; steel plates; a square, top, dimpled sheet getter and an additional mica spacer for lowered microphonics.. I am playing it in one of my ArtSound single ended 805 monoblocks with Steely Dans