4 RCA 12CA5 Vacuum Tubes NOS NIB Lot Of Four Matched Pair 6J7 new in box Raytheon 6BC7

new in box Raytheon 6BC7 tubes tested to spec on our Paul Hart-calibrated TV7/U

As I write

This Japanese 38KD6 tube tested 76 on our Paul Hart-calibrated TV7/U where minimum is 54 and new is 100

Transconductance measured 22 where minimum (65%) is 15

most likely

4 RCA 12CA5 Vacuum Tubes NOS NIB Lot Of Four Matched Pair 6J7 new in box Raytheon 6BC7This lot of four new old stock, new in box RCA 12CA5 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