4 Sylvania 6GX6 6GY6 Vacuum Tubes Valves NOS NIB Lot Of Four RCA 6X8 NOS NIB where minimum (65%) is 29

where minimum (65%) is 29 and 100% is 45

Special Features: SC 8762 A (World War Two US Army Signal Corps contract codes)

These tubes have banded phi-shaped mica spacers

Their readings are 44

4 Sylvania 6GX6 6GY6 Vacuum Tubes Valves NOS NIB Lot Of Four RCA 6X8 NOS NIB where minimum (65%) is 29These four new old stock, new in box Sylvania 6GX6 6GY6 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 COVERS