Coronado / Ken-Rad 6K6 6K6G Vacuum Tube Black And Silver Glass Shoulder ST-Shape NOS-Testing

Coronado / Ken-Rad 6K6 6K6G Vacuum Tube Black And Silver Glass Shoulder ST-Shape NOS-TestingThis new old stock testing Coronado BRANDED, Ken Rad MANUFACTURED 6K6 6K6G tube was tested on our Maxi Matcher II with 325 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas and it measured 2110 micromhos and drew 27. 1 milliamps' plate current. (New nominal transconductance is within one standard deviation of 1900.) WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE

top mica spacers with smooth-sided rectangular bottom mica spacers

It measured 40/40 where minimum (65%) is 40/40 and 100% is 62/62

These links came from the bracelet of a Phoibos 22 MM PX002 Dive Watch

Transconductance measured a nicely-balanced 68/72 where minimum (65%) is 56/56 and 100% is 86/86

I have played it in my Musical Paradise 301 MK 3 with an adapter (not included) as a 6SJ7 substitute and it sounds excellent -- airy with excellent dynamics and signal bandwidth

new in box Amperex 6R3 / EY8 tubes tested to spec on our Paul Hart-calibrated TV7/U

new in box GE 5AQ5 tube tested to spec on our Paul Hart-calibrated TV7/U

As many of you use just the triode section

It is dead quiet when the preamp is muted and has excellent frequency response and dynamics

I’ve never met a von Karajan completist as Karajan was just too prolific for any normal human to be a von Karajan completist

This perfectly-matched pair of Philco 24 globe

The spine is in fine shape with no loose pages and the dust jacket has only a few