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20AQ3=LY88 Motorola Golden Premium Rated Japan NOS 1970's (8 in stock)
20EZ7 GE NOS
22 US Brands NOS (14 in stock)
224 CECO Balloon used/strong 1930's (44/25) (3.0ma Gm=1000)
224 US Made Balloon used/tests like new 1930's no printing (50/25) (5.4ma Gm=1000)
226=26 Super Silvertone Balloon used/good 1932 (4.3ma, Gm=800)
22JF6 Mixed Brands NOS (6 in stock)
22KM6=22JF6 Mixed Brands NOS (1 in stock)
22KV6A GE NOS (5 in stock)
235=35 National Union balloon used/good 1933 (38/26)
235=35 Silvertone Balloon used/tests like new 1930's (43/26)
236=36 Radiotron Balloon NOS in original boxes with data sheets (sold out)
24 Philco Balloon used/very good 1930's (3.3ma Gm=900)
24A National Union ST-shape used/good 1940's (39/25)
24A National Union NOS (5 in stock)
24A Philco by Sylvania ST-shape tests like new 1940's (50/25 and 4.3ma Gm=1000)
24A Raytheon NOS 1940's (50/25)
24A RCA Cunningham engraved base NOS 1940 era (3 in stock)
24A Sylvania ST-shape engraved base used/very good 1930's (44/25) (2.9ma Gm=800)
257A Western Electric engraved base NOS 1930's (6 in stock) (257A is a 231D with a top cap grid connection)
