RCA 604 7014 Vacuum Tube Valve Rectifier 12B4A Nonal Transconductance measured 67 in Section

Transconductance measured 67 in Section One and 70 in Section Two for Tube One and 71/72 in Tube Two where minimum (65%) is 50/50 and 100% is 77/77

Plate current measured 34 milliamps with a transconductance of 4310 micromhos

and 34 on our Paul Hart-calibrated TV7/U where minimum (65%) is 25

It measured 78/80 where minimum (65%) is 50/50 and 100% is 77/77

these are the only Coke bottle-shape 6H6s I have seen in 25 years in the tube business

RCA 604 7014 Vacuum Tube Valve Rectifier 12B4A Nonal Transconductance measured 67 in SectionThis RCA 604 7014 rectifier tube looks only slightly used. Sold as is. It 66 26 date codes and steel or tantalum plates. 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