Matched Pair Hytron 1622 Industrial Vacuum Tubes Valves NOS NIB Sylvania Gebraucht copiously-illustrated book is in excellent

copiously-illustrated book is in excellent condition

This matched pair of Sylvania 6BL7GT dual triodes was tested on our TV7/U for shorts

new in box Raytheon 1032 / CK1032 is one of the strangest tubes I've ever seen and I have no idea how to test it

This lot of six US-made mesh plate

This lot of four US-made black glass as well as gray glass number / type 57 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Matched Pair Hytron 1622 Industrial Vacuum Tubes Valves NOS NIB Sylvania Gebraucht copiously-illustrated book is in excellentThis new old stock, new in box matched pair of Hytron 1622 tubes was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 46 while Tube Two measured 48 where minimum (65%) is 25. 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