RCA / Amperex 6GB5 Vacuum Tube Valve NOS NIB Pope Leo This new old stock-testing lot

This new old stock-testing lot of six Tung-Sol black glass 6K6GT tubes were tested on our Maxi Matcher 2 with 325 volts on the plates and a bias of --36 volts for shorts

This softcover book is in excellent condition

(New EL84s typically test from the mid 20s to mid 60s with transconductance from 7420

Tube One measured 30 while Tube Two measured 32 where minimum (65%) is 22 and 100% is 49

RCA / Amperex 6GB5 Vacuum Tube Valve NOS NIB Pope Leo This new old stock-testing lotThis new old stock, new in box Amperex MANUFACTURED, RCA BRANDED 6GB5 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