General Electric GE 6HM5 6HA5 Vacuum Tube Valve NOS NIB

General Electric GE 6HM5 6HA5 Vacuum Tube Valve NOS NIBThis new old stock, new in box GE 6HM5 6HA5 tube tested to spec on our Paul Hart calibrated TV7 U. 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 SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY

new in box Zenith 6BK7B tubes tested to spec on our Paul Hart-calibrated TV7/U

likely Tung-Sol-MANUFACTURED) measured 33 where minimum (65%) is 22

Transconductance measured a perfectly-balanced 72/72 where minimum (65%) is 56/56 and 100% is 86/86

Tube Two measured 10

46 and 49 where minimum (65%) is 30 and 100% is 47

new in box Italian Sylvania 12SN7GTA dual triode was tested on our Hickok 600A for shorts

new in box Hytron 35A5 tubes tested to spec on our Paul Hart-calibrated TV7/U

tiny nicks

Interesting aside: my paternal great aunt who was from Atlanta did a screen test for "Gone With The Wind

I am playing them as I write in my Sound Craftsmen SC-2 mono-block amplifiers with Neil Young's "Harvest" and they sound outstanding

These are 6N7 tubes

Philco-BRANDED 6R7 tested to spec on our Paul Hart-calibrated TV7/U