(!) CX-112A RCA Cunningham Balloon engraved base used/good 1930 era (6.2ma)
(!) CX-112A RCA Cunningham Balloon ribbed plate engraved base like new 1930 era (9ma)
(!) UX-112A Radiotron Balloon engraved base used/good 1930 era (7.4ma)
(!) UX-112A Radiotron Balloon engraved base used/tests like new 1930 era (8.3ma) (Gm like new)
(1 set of 4 tubes) 6D6 Mixed US Brands used/good 1930's - 1940's (set of 4)
(DISPLAY TUBE) 480 Deforest Audio Balloon shape glass 1930's (for display purposes only - does not work)
(DISPLAY TUBE) TS-281 Tungsol Balloon NOS engraved base 1930's (for display purposes only)
(DISPLAY TUBES) 80 Balloon shape glass 1930's (for display purposes only - do not work)
(DISPLAY) 242 Duovac USA brass base 1930's used but has high current will not run stable in amp - sold as display tube only
112A Balloon no name with blue "Type 112-A" sticker on glass used/good (4.7ma)
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)
15 Zenith engraved base used/50% output
1608 RCA white ceramic base NOS in white box 1940 era (32.5ma)
245=45 Silvertone Balloon engraved base 1930 era used/tests like new (42ma Gm=2230)
245=45 Silvertone engraved base 1934 used/tests like new (32ma Gm=2000)
257A Western Electric engraved base NOS 1930's (6 in stock) (257A is a 231D with a top cap grid connection)
257A Western Electric printed base NOS 1954
257A Western Electric printed base NOS 1960
27 National Union engraved base used/good 1930's (4.4ma)
