4 Sylvania 14C5 Vacuum Tubes Valves NOS NIB Lot Of Four Jo March David

4 Sylvania 14C5 Vacuum Tubes Valves NOS NIB Lot Of Four Jo March DavidThese four new old stock, new in box Sylvania 14C5 tubes tested to spec on our Paul Hart calibrated TV7 U. All were made by Sylvania although one is labeled "Philco." 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

Wish I knew who actually made them

minimum (65%) is 1690)

ETSY MAY REIMBURSE YOU EVEN IF IT WAS STOLEN

GE-LABELED 8A8 / 9A8 / PCF801 tube tested to spec on our Paul Hart-calibrated TV7/U

This General Electric 22JF6 tube tested 75 on our Paul Hart-calibrated TV7/U where minimum is 54 and new is 100

This pressing has very light surface noise

This GE 30MB6 tube tested to spec on our Paul Hart-calibrated TV7/U

Tube One measured 68/68 while Tube Two measured 74/74 where minimum (65%) is 50/50 and 100% is 77/77

CHINA IS AN EXCELLENT EXAMPLE

new in box US-made number / type 89 tubes tested to spec on our Paul Hart-calibrated TV7/U

This perfectly-matched pair of Philco 24 globe

perfectly-balanced 70/70 where minimum (65%) is 50/50 and 100% is 77/77