Raytheon 6L7 Vacuum Tube NOS-Testing 19BG6G Octal T39 This lot of six Zenith

This lot of six Zenith number / type 58 stamped- / engraved-base tubes was tested on our Paul Hart-calibrated TV7/U for shorts

but most should work in most circuits

This new old stock-testing matched pair of RCA 12B4 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

They have great bass and sparkling highs and Mann's voice is warm and clear as a bell

Tube One: 31

Raytheon 6L7 Vacuum Tube NOS-Testing 19BG6G Octal T39 This lot of six ZenithThis new old stock testing Raytheon 6L7 tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 32 27 where minimum (65%) is 18 18 and 100% is 28 28. 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.