Trio RCA Gray Glass 12BY7 12BY7A Vacuum Tubes Valves Passport Records This matched pair of new

This matched pair of new old stock

Tube One measured 47/44 while Tube Two measured 48/43 where minimum (65%) is 25/25 and 100% is 38

I am playing them in one my Radio Craftsmen RC2 mono blocks as I write and they sound super

new in box GE 21LU8 tubes tested to spec on our Paul Hart-calibrated TV7/U

Trio RCA Gray Glass 12BY7 12BY7A Vacuum Tubes Valves Passport Records This matched pair of newThis trio of RCA gray glass 12BY7 12BY7A tubes was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 55 while Tube Two measured 60. Tube Three measured 62. (Minimum (65%) is 46. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY