Mullard 6V4 EZ80 EZ-80 Vacuum Tube Rectifier NOS-Testing From The Hungry I new in box Amperex 38HE7

new in box Amperex 38HE7 tubes tested to spec on our Paul Hart-calibrated TV7/U

Transconductance measured 64 for Tube One and 68 for Tube Two tubes where minimum (65%) is 40

These tubes have top O saucer getters

5 inches in circumference

This lot of four RCA 50Y6 tubes tested to spec on our Paul Hart-calibrated TV7/U

Mullard 6V4 EZ80 EZ-80 Vacuum Tube Rectifier NOS-Testing From The Hungry I new in box Amperex 38HE7This new old stock testing, perfectly balanced Mullard EZ80 6V4 rectifier tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and emissions. There were no shorts or gas. It tested 64 in both sections where minimum (65%) is 40 40 and 100% is. It has sutured tops; gray plates; nice flashing and decent silkscreening. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE