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75=VT-75 Ken Rad Dual-Diode Triode used/good 1930's (26/19)
75=VT-75 RCA Dual-Diode Triode NOS 1948 (36/19)
75=VT-75 Sylvania Dual-Diode Triode used/good glass chip inside tube 1930's (26/19)
78 US Brands used/good (6 in stock)
78 Wards USA NOS 1940's
800=VT-64 RCA DeForest black plate engraved base used/good 1930's (38ma, Gm=1750) (tested on Amplitrex)
800=VT-64 RCA Radiotron charcoal black plate engraved base used 1930's (42ma, Gm=2000)
AF3 Miniwatt used/good 1940's
AF7 Miniwatt used/good 1930's
AF7 Triotron used/good 1940's
AK2 Miniwatt Octode used/good 1930's (sold out)
C-11=WD-11 Cunningham NOS engraved base 1930 era
CX-12 Cunningham NOS original box 1930's (1 in stock)
CX-12 Cunningham NOS original box 1930's (24/11)
UX-201-A RCA Radiotron Balloon tests like new 1930's (read review)