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24A Raytheon NOS 1940's (50/25)
24A RCA Cunningham engraved base NOS 1940 era (3 in stock)
24A RCA Cunningham ST-shape used/tests like new 1940's (49/25 and 4.8ma Gm=1200)
24A Sylvania NOS (2 in stock)
24A Sylvania ST-shape engraved base used/very good 1930's (44/25) (2.9ma Gm=800)
25EH5 GE branded Motorola NOS 1965 (1 in stock)
25EH5 GE NOS (1 in stock)
25EH5 RCA NOS (1 in stock)
26 Coronado by RCA tests like new 1940's (6.0ma)
26 Knight by Sylvania ST-14 used/like new 1940's (6.4ma)
26 National Union engraved base tests like new 1930's (6.0ma)
26 National Union ST-14 used/like new 1940's (6.1ma)
26 RCA Radiotron/Cunningham engraved used/good 1930's (3.6ma)
26 RCA Radiotron/Cunningham engraved used/very good 1930's (5.9ma)
26 ST-14 National Union used/good 1950 era (3.8ma, Gm=900)
26 ST-14 Super Silvertone used/good 1930's (3.6ma, Gm=800)
27 National Union engraved base used/good 1930's (4.4ma)
272A Western Electric "meshplate" used/good 1963 (5.0ma Gm=600)
283A WE meshplate used/50% output 1947
291A Western Electric NOS 1972 (42/25)
