375A Western Electric NOS 1964 (32ma)
375A Western Electric NOS 1964 (44.2ma)
375A Western Electric NOS 1966 glass slightly tilted (29.2ma)
375A Western Electric NOS/70% 1964 (21ma)
388A Western Electric NOS 1940's (doorknob triode)
393A GE made for WE test like new 1940's (62/40)
393A GE made for WE tests like new 1940's, tilted top plate (62/40)
395A Western Electric NOS
399B Western Electric used/good 1950's (3 in stock)
401A Western Electric
407A LM Ericsson Sweden like new 1960's (41/26 and 42/26)
407A LM Ericsson Sweden used/good 1960's
407A Sylvania branded RCA gold pins used/good 1971
407A Sylvania branded RCA NOS 1977
407A Sylvania gold pins used/good 1960's
407A Western Electric like new 1968 in white box (54/26 and 64/26)
407A Western Electric used/good 1959
407A Western Electric used/good 1967
407A Western Electric used/good 1972
407A Westinghouse Canada NOS 1960's