3 Philco 12K7 12K7G Vacuum Tubes Valves NOS NIB Shoulder ST Style Lot Of Three Compactron T40 T52 round mica spacers and excellent

round mica spacers and excellent flashing

These matched pair of engraved-base

8 milliamps' plate current with a transconductance reading of 2240 micromhos

Tube One drew 21

These four US-made 12SC7 tubes tested as follows on our Paul Hart-calibrated TV7/U:

3 Philco 12K7 12K7G Vacuum Tubes Valves NOS NIB Shoulder ST Style Lot Of Three Compactron T40 T52 round mica spacers and excellentThis lot of three new old stock, new in box Philco 12K7G tubes tested to spec on our Paul Hart calibrated TV7 U. They have shoulder Coke bottles and are perfect for the restorer who wants absolute historical accuracy. 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