6 12BY7 12BY7A 12BV7 Gray Glass Vacuum Tubes Lot Of Six 35L6GT Octal O getter and an 805

O getter and an 805 ACP date / provenance code

respectively and bottom

5 out of ten

These two photomultiplier tubes could not be tested and are sold as-is

6 12BY7 12BY7A 12BV7 Gray Glass Vacuum Tubes Lot Of Six 35L6GT Octal O getter and an 805These six gray glass 12BY7 12BY7A 12BV7 tubes tested as follows on our Paul Hart calibrated TV7 U where minimum (65%) is 46: 40, 47, 52, 53, 53 and 54. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. 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. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO