Matched Pair Ken-Rad 6SJ7 Vacuum Tubes JANCRC12SG7Y Milspec Transconductance measured 2000/1900 micromhos for

Transconductance measured 2000/1900 micromhos for Tube One and 2000/2000 micromhos for Tube Two

They measured (from left to right) 51/50

new in box (for Tube One) matched pair of RCA 6C8G dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

Transconductance measured 58 for Tube One and 58 for Tube Two where minimum (65%) is 40

This milspec CBS-Hytron USN-CHY-5Y3WGTA / 5Y3 black plate rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair Ken-Rad 6SJ7 Vacuum Tubes JANCRC12SG7Y Milspec Transconductance measured 2000/1900 micromhos forThis new old stock testing matched pair of Ken Rad 6SJ7s was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 55 for Tube One and 60 for Tube Two where minimum (65%) is 40. They have 7 09 188 5 and 630 188 5 date provenance codes, respectively. I am playing them as I write in my Musical Paradise MP 301 MK3 and they sound excellent. WE HAVE SCORES OF THOUSANDS OF