Sylvania 6BX7 6BX7GT Vacuum Tube Valve NOS NIB 1st Quarter BW11 It is dead quiet when

It is dead quiet when the preamp is muted and has excellent frequency response

This RCA 6JM6A tube is new old stock

PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHELEC" AND/OR CALL OR TEXT US AT 202-372-6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS

new in box Raytheon BH rectifier tube has not been tested yet

new in box GE 6AS8 tubes tested to spec on our Paul Hart-calibrated TV7/U

Sylvania 6BX7 6BX7GT Vacuum Tube Valve NOS NIB 1st Quarter BW11 It is dead quiet whenThis new old stock, new in box Sylvania 6BX7GT tube tested to spec on our Paul Hart calibrated TV7. It measured 52 55 where minimum (65%) is 38 and 100% is 58. 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 OF THE TUBES WE SELL ARE OVER 70 YEARS OLD. WE CANNOT