JJ 6BQ5 / EL84 Vacuum Tube NOS NIB 6R3 new in box RCA 6CG8A

new in box RCA 6CG8A tubes tested to spec on our Paul Hart-calibrated TV7/U

They measured 31 and 32 where minimum (65%) is 28 and 100% is 43

This GE 6EH4 tube tested to spec on our Paul Hart-calibrated TV7/U

This matched pair of Hytron gray glass 6V6GT output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

JJ 6BQ5 / EL84 Vacuum Tube NOS NIB 6R3 new in box RCA 6CG8AThis new in box JJ 6BQ5 was tested on our Maxi Matcher with 325 volts on the plates and a bias of 14 volts for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured micromhos with a plate current draw of milliamps . (New EL84s typically test from the mid 20s to mid 60s with transconductance from 7420 micromhos). WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY