4 Westinghouse 6S4 6S4A Vacuum Tubes Valves NOS NIB Lot Of Four T19 new in box milspec GE

new in box milspec GE 6C4 6C4WA triodes was tested on our Paul Hart-calibrated TV7/U for shorts

crenelated rectangular mica spacers

They measured 30/34 and 38/37 where minimum (65%) is 25/25 and 100% is 38/38

It has shiny gray rounded plates

Transconductance measured 74 for Tube One and 76 for Tube Two where minimum (65%) is 58

4 Westinghouse 6S4 6S4A Vacuum Tubes Valves NOS NIB Lot Of Four T19 new in box milspec GEThis lot of four new old stock, new in box Westinghouse 6S4A 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