3 US-Made 12BR7 Vacuum Tubes Valves NOS NIB Lot Of Three VR150 T31 Bases: N/A

Bases: N/A

Tubes Three and Four measured 73/70 and 75/72

new in box Cunningham 14F7 tube tested to spec on our Paul Hart-calibrated TV7/U

sheet getters

Transconductance readings are 44

3 US-Made 12BR7 Vacuum Tubes Valves NOS NIB Lot Of Three VR150 T31 Bases: N/AThis lot of three new old stock, new in box US made 12BR7 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