Tested Strong Matched Pair. In Excellent condition. Made in USA. I tested all the tubes with TV7/BU Tube tester. Minimum: 46. Tube#1: 80.
Item Tag: National Union
-
TWO National Union NX-45 Tubes 45 / Tested +100% / Engraved 1930’s Cup Getter
Large inverted cup getter / round bell getter. Engraved base / etched / hot stamp. Two National Union NX-45 tubes. Matched N date codes, both made in 1930’s. Type 45 tubes. Tubes test at 2280 and 2230 where 1300 micromhos is pass/fail.
-
5x lot 6AK5 Vacuum Tube JNU-6AK5 US Navy
Tested on BK precision 667 tube tester. All test mid 70s. US navy stamp, made in USA. Short black plates. Many are dirty and/or have faded labels.
-
National Union 483 Type 45 Globe Tube 5 Volt Power Triode Black Plate Engraved
Aquired from a life long collector on the West Coast.