84=6Z4 Sylvania branded RCA used/good 1940”s (49/40 and 49/40)

84=6Z4 Sylvania branded RCA used/good 1940”s (49/40 and 49/40)

TESTED on TV-7D/U: 40 is minimum pass for good = 65%

above 50 = 100%

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

SPECS:

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

USED IN:

Philco Model 40-180 1939-1940