Arcturus Number / Type 76 #76 Vacuum Tube EZ81 I am playing them in

I am playing them in my Mini Mite 2013 and they sound super

new in box RCA 6AU4GTA tubes tested to spec on our Paul Hart-calibrated TV7/U

meaning it was made at the Philips plant in Heerlen

THE PRODUCT DEVELOPMENT AND IMPROVEMENT CYCLE IS OVER

(New EL84s typically test from the mid 20s to mid 60s with transconductance from 7420

Arcturus Number / Type 76 #76 Vacuum Tube EZ81 I am playing them inThis Arcturus type 76 triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 46 where minimum (65%) is 36 and 100% is 55. It has shiny gray rounded plates; a top, banded, rectangular mica spacer as well as a rectangular bottom spacer, mica snubbers for increased rigidity and lowered microphonics and excellent flashing. I have played it in one of my Radio