3 National Union NU 7C4 1203A Vacuum Tubes NOS NIB Lot Of Three Prospects Of The not included) in my AC-heated

not included) in my AC-heated Alan Eaton single-ended 45 amplifier and they sound OK

Transconductance measured 73/79 where new/nominal is 50/50

even though they test on the cusp

This Ken-Rad 1C77G tube tested to spec on our Paul Hart-calibrated TV7/U

3 National Union NU 7C4 1203A Vacuum Tubes NOS NIB Lot Of Three Prospects Of The not included) in my AC-heatedThese three National Union 7C4 1203A tubes 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