Sylvania 1H4 1H4G Vacuum Tube Valve NOS NIB Tung-Sol 12V6 12V6GT great bass and sparkling highs

great bass and sparkling highs and the alto sax cut through the air without a hint of stridency

Tube One: 44/48

steel plates and a top

This matched pair of Raytheon 6AK5 black plate tubes was tested on our Paul Hart-calibrated TV7/U

new in box Sylvania 9JW8 / PCF802 tube tested to spec on our Paul Hart-calibrated TV7/U

Sylvania 1H4 1H4G Vacuum Tube Valve NOS NIB Tung-Sol 12V6 12V6GT great bass and sparkling highsThis new old stock, new in box Sylvania 1H4G tube tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST OF THE TUBES WE SELL ARE OVER 70 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETERMINE HOW TUBES WILL INTERACT WITH YOUR ELECTRONICS OR