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(!) (PAIR) 6D6 RCA Cunningham used/good 1930's (62/40 and 62/40)
(!) 47 Raytheon engraved base box plate used/good 1930's (25.2ma Gm=1940)
(!) 47 RCA Radiotron engraved base used/good 1930's (27.5ma Gm=2250)
(!) 47 Tungsol Aristocrat low hours/tests like new 1940's (38ma Gm=2770) (highest mA and Gm)
(!) CX-112A RCA Cunningham Balloon ribbed plate engraved base like new 1930 era (9ma)
(!) UV-201-A RCA used/good 1930 era - no printing or etching on base (2.3ma)
(!) UX-112A Radiotron Balloon engraved base used/good 1930 era (7.4ma)
(1 set of 4 tubes) 6D6 Mixed US Brands used/good 1930's - 1940's (set of 4)
(Display tube) UV-201 Volutron brass base - does not work - in good condition - 1920's
(DISPLAY TUBE) UV-201-A Radiotron "brass base and tipped" 1920's lights up nicely but no emission (display tube)
(Display tube) UV-201A Radiotron brass base 1920's (does not work)
01A Wards by Sylvania used/good 1940's (2.6ma Gm=700)
112A Rayovac Balloon engraved base used/very good, internals like a UX-112A RCA (8.5ma)
112A RCA used/tests like new 1930's (7.5ma)
171A RCA Radiotron Balloon used/good 1932 (20ma)
27 National Union engraved base used/good 1930's (4.4ma)
57 Cunningham used/tests like new 1930's (45/31)
57 Raytheon used/tests like new 1930's (46/31)
5T4 GE NOS 1945 (54/40 and 56/40)
5T4 GE NOS 1945 (56/40 and 58/40)
