RCA 21LU8 Vacuum Tube Valve NOS NIB 17JM6A Compactron new in box (for Tube

new in box (for Tube Two) aesthetically-matched pair of gray glass RCA 12SL7GT dual triodes was tested on our Paul Hart-calibrated TV7/U for shorts

The remaining two are labeled "1X2B

This matched pair of milspec National Union VT-107-A / JAN-CNU-6V6-GT gray glass output tubes was tested on our Maxi-Matcher 2 with 400 volts on the plates and a bias of -36 volts for shorts

clear glass 6K6GT tubes was tested on our Maxi-Matcher tube tester with 325 volts on the plates and a bias of -36 volts

new in box GE 6DG6B tube tested to spec on our Paul Hart-calibrated TV7/U

RCA 21LU8 Vacuum Tube Valve NOS NIB 17JM6A Compactron new in box (for TubeThis new old stock, new in box RCA 21LU8 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 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 GUARANTEE FOR FAILURES AFTER POWER UP AS THERE IS NO WAY TO DETERMINE