84=6Z4 GE NOS 1950 (51/40 and 52/40)

84 GE NOS 1950

51/40

52/40

(84=6.3V @ 500ma Filament, 1250V PIV, 60ma)

NOTE: YOU CANNOT! SUB THESE 6Z4 for the CHINESE branded 6Z4

for:

Philco Model 40-180 1939-1940