Matched Pair General Electric GE 12AV7 Vacuum Tubes NOS NIB Saint-Saens Opus 78 new in box RCA 7B6

new in box RCA 7B6 tubes tested to spec on our Paul Hart-calibrated TV7/U

gold pins and outstanding flashing

This Sylvania 6BS8 tube tested to spec on our Paul Hart-calibrated TV7/U

This mesh plate RCA Cunningham Radiotron number 78 tube tested 54 on our Paul Hart-calibrated TV7/U where minimum (65%) is 36 and 100% is 56

Support Rods: copper

Matched Pair General Electric GE 12AV7 Vacuum Tubes NOS NIB Saint-Saens Opus 78 new in box RCA 7B6This matched pair of new old stock, new in box GE dual triodes was tested on Transconductance measured 70 70 for Tube One and 72 72 for Tube Two. (Minimum (65%) is 33. 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 FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY