Matched Quad CBS-Hytron 6CL6 Vacuum Tubes Valves Black Plate NOS NIB 4th Quarter BW46 excellent flashing and well-secured bases

excellent flashing and well-secured bases and bottles that are nice and tight

It has a diamond in its base with a 135 code

CRUEL AND DRACONIAN GERMAN PACKAGING REGULATIONS -- AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM -- WE NO LONGER SHIP TO GERMAN ADDRESSES FROM JUNE 1

These four Philco engraved base number / type 27 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

Matched Quad CBS-Hytron 6CL6 Vacuum Tubes Valves Black Plate NOS NIB 4th Quarter BW46 excellent flashing and well-secured basesThis new old stock, new in box matched quad of CBS Hytron black plate 6CL6 tubes were tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 49, 50, 50 and 52 where minimum (65%) is 30. 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