3 RCA 53HK7 Vacuum Tubes Valves Milspec NOS NIB Lot Of Three All About Love These mesh plate National Union

These mesh plate National Union number 78 tube were tested on our Paul Hart-calibrated TV7/U for shorts

rounded plates

There were no shorts or gas and they tested as follows:

There is a shield between the triodes for reduced cross talk

new in box matched pair of milspec Tung-Sol JAN-CTL-6098 / 6AR6WA output tubes was tested on Paul Hart-calibrated TV7/U for shorts

3 RCA 53HK7 Vacuum Tubes Valves Milspec NOS NIB Lot Of Three All About Love These mesh plate National UnionFor sale are three new old stock, new in box RCA 53HK7 tubes. Two are American and one is Japanese. 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 UP TO