10=VT-25 Sylvania NOS 1940's (25ma)
19 US Brands NOS (20 in stock)
19 US Brands NOS (4 tubes for $12.99)
197T119AO1 Motorola/GE Planar Triodes NOS (4 in stock)
231D Western Electric NOS 1953 (1.6ma)
257A Western Electric printed base NOS 1954
257A Western Electric printed base NOS 1960
26 Coronado by RCA tests like new 1940's (6.0ma)
26 National Union engraved base tests like new 1930's (6.0ma)
26 RCA Radiotron/Cunningham engraved used/good 1930's (3.6ma)
26 RCA Radiotron/Cunningham engraved used/very good 1930's (5.9ma)
272A Western Electric "meshplate" used/good 1963 (5.0ma Gm=600)
272A Western Electric NOS "meshplate" (752=1947) slightly tilted plate with data sheet (6.7ma Gm=900)
31 Philco by Sylvania engraved base NOS 1930's (11.5ma Gm=1000)
37 GE NOS 1946 (7.3ma)
37 GE ribbed plate NOS 1943 (8.0ma)
37 Raytheon NOS 1946 (7.3ma)
37 RCA branded Philco used/good 1940's (6.4ma)
37 RCA Cunningham engraved base like new 1930's (8.3ma)
37 Sylvania branded Raytheon NOS 1948 (7.0ma)
