2 Sylvania 6LY8 Vacuum Tubes Valves NOS NIB Lot Of Two 12HG7 NOS NIB This is a late-50s

This is a late-50s

Transconductance was 1240 for Tube One and 1380 for Tube Two where new/nominal is within one standard deviation of 1900

Transconductance measured 38/41 for Tube One and 42/41 for Tube Two (RCA-LABELED) where minimum (65%) is 32/32

new in box GE black plate 6CL6 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

WE HAVE TENS OF THOUSANDS 0F VACUUM TUBES

2 Sylvania 6LY8 Vacuum Tubes Valves NOS NIB Lot Of Two 12HG7 NOS NIB This is a late-50sThese new old stock, new in box Sylvania 6LY8 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 ITEMS UP TO