(!!!) CX-301-A Cunningham used/tests like new 1930 era (3.2ma Gm=800)
(!!) (BEST PAIR) UX-201-A RCA Radiotron Balloon tests like new 1930's (3.0ma and 3.4ma)
(!!) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.3ma and Gm=700)
(!!) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.6ma and Gm=700)
(!!) UX-201-A Radiotron Balloon used/tests like new brass pins 1930 era (4.4ma and Gm=800)
(Display tube) 201A Volutron brass base - does not work - in good condition - 1920's
01A National Union NOS 1940's (3.1ma)
01A Sylvania engraved used 1930's (2.5ma Gm=400)
01A Wards by Sylvania used/good 1940's (2.6ma Gm=700)
UX-201-A Radiotron used/very good 1930's (2.5ma Gm=700)
