Ken-Rad 5V4 5V4G Vacuum Tube Black Plate Shoulder ST-Shape Rectifier May 28 2025 Tube One: 31

Tube One: 31

new in box Philco 35Z3 tubes tested to spec on our Paul Hart-calibrated TV7/U

Tube Two lacks most markings and I believe it was military surplus and had its markings removed as memories of the war were a little too fresh

This perfectly-matched quintet of new old stock-testing Sylvania-MANUFACTURED 7A7 tubes was tested on our Hickok 800 for shorts

(New 12AU7s typically test within one standard deviation of 2200 micromhos

Ken-Rad 5V4 5V4G Vacuum Tube Black Plate Shoulder ST-Shape Rectifier May 28 2025 Tube One: 31This Ken Rad 5V4G rectifier tube was tested on our Paul Hart calibrated TV7 U. It measured 58 56 where minimum (65%) is 40 40 and 100% is 62 62. 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.