7 US-Made 6B7 Vacuum Tubes Lot Of Seven Donna Summer Etsy will indicate how many

Etsy will indicate how many tubes are available in this Dutch auction

WE CANNOT TEST FOR CATASTROPHIC FAILURE

very-light-gray bottles and mk AAB and kg BCL date codes

These are beautiful tubes

7 US-Made 6B7 Vacuum Tubes Lot Of Seven Donna Summer Etsy will indicate how manyThese seven US made 6B7 tubes tested as follows on our Paul Hart calibrated TV7 U: Triode Sections: 25, 32, 32, 34, 34, 34 and 38 where minimum (65%) is and 100% is . Rectifier sections: 28 48, 15 36, 54 54, 48 45, 40 62, 36 34 and 60 52, respectively. 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