Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Milspec Black Plate NOS NIB Original new in box US-made 1LN5

new in box US-made 1LN5 tubes tested to spec on our Paul Hart-calibrated TV7/U

Transconductance measured 116%/104% where minimum (65%) is 70%/70%

Tube Two: 19

new in box GE 12DS7 tubes tested to spec on our Paul Hart-calibrated TV7/U

This RCA 6JM6A tube is new old stock

Matched Pair Ken-Rad 2C22 JANCKR2C22 7193 Vacuum Tubes Milspec Black Plate NOS NIB Original new in box US-made 1LN5This 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