Westinghouse 6AK6 Vacuum Tube Valve NOS NIB

Westinghouse 6AK6 Vacuum Tube Valve NOS NIBThis new old stock, new in box GE 6AK6 tube tested to spec on our Paul Hart calibrated TV7 U. BECAUSE OF THE BIZARRE, INTRUSIVE 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 HAVE IT. PLEASE

an anode radiator for cooler operation and longer tube life and a banded-cross top mica spacer

This matched pair of Tung-Sol black glass 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts

perfectly-matched pair of Sylvania 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box RCA 6W4 / 6W4GT tubes tested to spec on our Paul Hart-calibrated TV7/U

It is a bit microphonic

It sounded balanced

This lot of four North American-made number 78 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

The 7189 is a more robust EL84 which is able to dissipate an extra watt or two

Transconductance measured 34 where minimum (65%) is 30 and 100% is 46

I am listening to this LP now and it sounds quite good

This pressing has light surface noise audible in pianissimo-piano passages and barely-audible in mezzo forte passages and louder

One of our best-sounding vintage albums