General Electric GE 3CZ3 3CZ3A Vacuum Tube Valve NOS NIB 10DE7 NOS NIB Transconductance measured 44 and 48

Transconductance measured 44 and 48 where minimum (65%) is 35

It will also be also -- as time becomes available -- on our Paul Hart-calibrated TV7/U for a more-familiar point of reference for most

IN 2021 WE PURCHASED 150

milspec Sylvania GB-6X4WA was tested on our Paul Hart-calibrated TV7/U for shorts

new in box RCA 6JT8 tubes tested to spec on our Paul Hart-calibrated TV7/U

General Electric GE 3CZ3 3CZ3A Vacuum Tube Valve NOS NIB 10DE7 NOS NIB Transconductance measured 44 and 48This GE 3CZ3A 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 IN VALUE. IF AN ITEM IS