4 RCA 12CA5 Vacuum Tubes NOS NIB Lot Of Four Matched Pair 6J7 52/34 and 56/47 where minimum

52/34 and 56/47 where minimum (65%) is 40/45 and 100% is 62/69

most likely

Transconductance measured 22 where minimum (65%) is 15

but tests on the low side for a new tube

4 RCA 12CA5 Vacuum Tubes NOS NIB Lot Of Four Matched Pair 6J7 52/34 and 56/47 where minimumThis 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