9 Sylvania 6SR7 Vacuum Tubes NOS NIB Lot Of Nine Neutrality During They have Y5E and 9-22

They have Y5E and 9-22 codes

47 and 54 where minimum (65%) is 36 and 100% is 55

They were made by Ken-Rad although one is branded "Crosley

32 and 36 where minimum (65%) is 25

" "The Steppe Lies Long Beyond The Volga

9 Sylvania 6SR7 Vacuum Tubes NOS NIB Lot Of Nine Neutrality During They have Y5E and 9-22This lot of nine new old stock, new in box Sylvania Sylvania MANUFACTURED 6SR7 tubes tested to spec on our Paul Hart calibrated TV7 U. The GM LABELED ones all have 312 Sylvania EIA codes. 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