Groove Tube 12AX7 / ECC83 / GT-ECC83-S Premium Vacuum Tube For Your Univalve December 18 2020 new in box RCA 6ME8

new in box RCA 6ME8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box milspec RCA JAN-CRC-884 / VT-222 tubes tested to spec on our Paul Hart-calibrated TV7/U

5 milliamps' plate current and tested 2600 micromhos while Tube Two tested 31/3000

shields between triodes to eliminate crosstalk

Groove Tube 12AX7 / ECC83 / GT-ECC83-S Premium Vacuum Tube For Your Univalve December 18 2020 new in box RCA 6ME8This Groove Tube GT ECC83 S ECC83 12AX7 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 40 37 where minimum (65%) is 32 32 and 100% is 49 49. It has outstanding silkscreening; excellent flashing and an O getter. I am playing it in one of my ArtSound monoblocks as I write and it is absolutely silent. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT