General Electric GE 6N7 6N7G Black Plate Vacuum Tube Shoulder ST Shape VT-74 Milspec This trio of US-made 6CM7

This trio of US-made 6CM7 tubes was tested on our Paul Hart-calibrated TV7 for shorts

This new old stock-testing Canadian Rogers 6CG7 / 6FQ7 dual triode was tested on our TV7 for shorts

These two RCA 6JV8 tubes tested to spec on our Paul Hart-calibrated TV7/U

It has dual D getters

Transconductance measured 41/41 for Tube One and 43/41 for Tube Two where minimum (65%) is 34/36 and 100% is 52/55

General Electric GE 6N7 6N7G Black Plate Vacuum Tube Shoulder ST Shape VT-74 Milspec This trio of US-made 6CM7This GE 6N7G tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 51 46 where minimum (65%) is 38 38 and 100% is 58 58. It has an old fashioned "Coke" bottle; black plates; beautiful, copious flashing and mica snubbers for increased rigidity for lowered microphonics. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY