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837 Ken Rad used/tests like new 1940's scratched base (87/50)
837 US Brands NOS (0 in stock)
James Millen #36002 USA ceramic top cap for 310A / 328A / 807 / 837 / VT61 (0 in stock) (Made in USA) (3/8")
VT-101=837 Hytron used/good 1940's (67/50)