6 Philco 5X8 Vacuum Tubes Valves NOS NIB Lot Of Six Sigmund Freud 5 -- maybe an eight

5 -- maybe an eight -- out of ten

new in box Italian Sylvania 12SN7GTA dual triode was tested on our Hickok 600A for shorts

This nicely-illustrated story book is in very good condition

Transconductance was 1530 for Tube One and 1430 for Tube Two where new/nominal is within one standard deviation of 1900

Transconductance measured (From left to right): 36

6 Philco 5X8 Vacuum Tubes Valves NOS NIB Lot Of Six Sigmund Freud 5 -- maybe an eightThese six new old stock, new in box Philco 5X8 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