Sylvania 19T8 Vacuum Tube NOS NIB 6S4A Nonal This new old stock-testing matched

This new old stock-testing matched pair of Sylvania 6AU6A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

They struck at 35

well-recorded and well-pressed

rounded plates

new in box Westinghouse 6S4A tubes tested to spec on our Paul Hart-calibrated TV7/U

Sylvania 19T8 Vacuum Tube NOS NIB 6S4A Nonal This new old stock-testing matchedThis new old stock, new in box Sylvania 19T8 tube and another just like it tested to spec on our Paul Hart calibrated TV7 U. Etsy will indicate how many tubes are available in this Dutch auction. 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