Realistic Radio Shack Gold Clad 3V4 Vacuum Tube NOS NIB Grayston Burgess This matched pair of Tung-Sol

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

pre-oil-embargo pressing and it sounds very good

53 and 54 where minimum (65%) is 40 and 100% is 62

These tubes have acid-etched codes and designations as well as silk-screened 68-26 188-5 67-50 production run/provenance codes

new in box matched pair of Raytheon 6SD7GT / JAN-CRP-6SD7GT pentodes was tested on our Paul Hart-calibrated TV7 for shorts

Realistic Radio Shack Gold Clad 3V4 Vacuum Tube NOS NIB Grayston Burgess This matched pair of Tung-SolThis new old stock, new in box Realistic (Radio Shack) Gold Clad 3V4 tube tested to spec on our Paul Hart calibrated TV7 U. It was made in the US, likely by GE. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY