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(!) 30 Cunningham NOS 1940's original box (2.7ma)
(!) 30 Philco engraved base NOS 1930's (3.7ma)
(!) 31 Ken Rad NOS engraved base 1940 era (11ma)
(!) 31 Tungsol NOS 1940's (11.8ma)
(!) 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)
(!) 47 Raytheon engraved base box plate used/good 1930's (25.2ma Gm=1940)
(!) 47 RCA Radiotron Balloon used/good 1930's (23.4ma)
(!) 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)
(!) 5687 Raytheon part bronze part black plates used/tests like new 1960 (33/38ma)
(!) 59 Majestic NOS engraved base excellent condition 1930's
(!) 5C22 ITT Electron Tube Division low hours/good condition 1967 some scratches on the base
(!) 6922=E88CC Philips Holland SQ gold pins used/75% 1973 (8.8/8.5ma) (Same Gm)
(!) 6AN8 RCA black plates "D" getter halo 1958 rebranded Admiral (14.2/10.5ma)
(!) 6AN8A Tungsol rebranded Dumont NOS 1960's (14.5/14.8ma)
(!) 6BA6=EF93 Telefunken Germany <> bottom "D" getter NOS 1950's (10.6ma)
(!) 6BA6=EF93 Telefunken Germany <> bottom "D" getter NOS 1950's (10ma)
(!) 6BE6 Raytheon NOS 1950's (1.1ma Gm=900)
(!) 6BE6 Sylvania NOS (1.4ma)
(!) 6DE7 GE Admiral black plates NOS 1965 (4.5/27ma) (Woo Audio)
