Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Milspec Black Plate NOS NIB Lidia Ruslanova

Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Milspec Black Plate NOS NIB Lidia RuslanovaThis new old stock, new in box matched pair of Ken Rad JAN CKR 2C22 7193 milspec triodes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 60 while Tube Two measured 64 where minimum (65%) is 38 and 100% is 58. I have played them in my Radio Craftsmen RC 2 monoblocks (with adapters not included) and they sound outstanding. They are dead quiet when the CD player is muted

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

This tube has black plates

new in box RCA 17CU5 / 17C5 tubes tested to spec on our Paul Hart-calibrated TV7/U

This GE 5-Star industrial 6SK7 / GL 6137 tube tested to spec on our Paul Hart-calibrated TV7/U

89/77 and 90/75

new in box RCA 1DG3 tube tested to spec on our Paul Hart-calibrated TV7/U

Transconductance measured 75/70 for Tube One and 77/72 for Tube Two where minimum (65%) is 50/50 and 100% is 77/77

new in box DOT-39 20K To 30K center-tapped interstage transformer is sold as-is as I have no means of testing this output transformer

I am listening as I write and this album sounds pretty good

new in box GE 6DS4 tube tested to spec on our Paul Hart-calibrated TV7/U

For those who enjoy the historical aspects early HiFi and/or a Kentomaniac with love for early pressings

I cannot guarantee that the copper-colored finish is rose gold