Trio RCA Gray Glass 12BY7 12BY7A Vacuum Tubes Valves Passport Records Tube One measured 28 while

Tube One measured 28 while Tube Two measured 29 where minimum (65%) is 22

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

Delco-BRANDED 6SK7 tested as good on our Paul Hart-calibrated TV7/U

A 7 out of 10

Trio RCA Gray Glass 12BY7 12BY7A Vacuum Tubes Valves Passport Records Tube One measured 28 whileThis 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