Amperex 6GK5 Vacuum Tube NOS NIB

Amperex 6GK5 Vacuum Tube NOS NIBThis new old stock, new in box Amperex 6GK5 tube tested to spec on our Paul Hart calibrated TV7 U. 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 INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250

Tube Two (diodes): 36/38

Tube One measured 32 while Tube Two measured 36 where minimum (65%) is 36

These mesh plate National Union number 78 tube were tested on our Paul Hart-calibrated TV7/U for shorts

is very quiet and has only the occasional pop and tick

Tube One: 54/68

This lot of eight new old stock

RCA-MANUFACTURED) and 1350 for Tube Two (Philco-LABELED

Transconductance was 2810 micromhos for Tube One and 2900 for Tube Two

FOUR-STAR REVIEWS OR HAVE LOST A CUSTOMER BECAUSE I REFUSED TO EITHER ISSUE A REFUND FOR A TUBE THAT WENT BAD AFTER IT HAD BEEN USED OR A BUYER KNEW NOTHING ABOUT TUBE REBRANDING AND CLAIMED THAT SOMETHING MADE BY TUNG-SOL AND BRANDED BY EMERSON WAS MADE BY EMERSON

These tubes have tall bases

new in box GE 7B8 tested to spec on our Paul Hart-calibrated TV7/U and all test to spec

Igor Oistrakh