3 RCA 12AV7 Vacuum Tubes Valves NOS NIB Lot Of Three Geprueft Septal This new old stock-testing engraved

This new old stock-testing engraved base

winged plates and its gain (mu (µ): characteristics are much-closer to the 12AU7 where new/nominal is 16 while the 12AT7's is 50

This matched pair of RCA 6X5GT rectifier tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Tube One's gain was quite a bit lower and still should be useful if your amp has a balance control

new in box Zenith 6DQ4 tube tested to spec on our Paul Hart-calibrated TV7/U

3 RCA 12AV7 Vacuum Tubes Valves NOS NIB Lot Of Three Geprueft Septal This new old stock-testing engravedThis lot of three new old stock, new in box RCA 12AV7 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