4 Sylvania 6AX8 Vacuum Tubes Valves NOS NIB Lot Of Four Matched Pair 6AK5 I can't tell you how

I can't tell you how they sound as we don't have any equipment that runs them

It has copper support rods

It is a strange bird with well over an inch of space above the top mica spacer

new in box matched pair of JJ low noise 12AX7 / ECC83 / 12AU7 dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

new in box matched pair of RCA 6AK5 tubes was tested on our Paul Hart-calibrated TV7/U tester for shorts

4 Sylvania 6AX8 Vacuum Tubes Valves NOS NIB Lot Of Four Matched Pair 6AK5 I can't tell you howThese four new old stock, new in box Sylvania MANUFACTURED, GM Delco BRANDED 6AX8 tubes tested to spec on our Paul Hart calibrated TV7 U. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY 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 OF THE TUBES WE SELL ARE OVER 50 YEARS OLD. WE CANNOT GUARANTEE FOR FAILURES