Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Valves Milspec Black Plate NOS NIB Cunningham Sextal There is a shield between

There is a shield between the triodes for reduced cross talk

These are ultra-low-noise

electricity and chemicals and a 623 date code

outstanding flashing and a 43-C2 date code

Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Valves Milspec Black Plate NOS NIB Cunningham Sextal There is a shield betweenThis 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 48 while Tube Two measured 49 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