Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Milspec Black Plate NOS NIB Lidia Ruslanova It is dead quiet when

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

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

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

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

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

Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Milspec Black Plate NOS NIB Lidia Ruslanova It is dead quiet whenThis 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