General Electric (GE) Model K-52 Cathedral Radio (1933)
GE's model K-52 (K52) is a compact 5-tube two band
cathedral radio. It was introduced in the fall of 1933,
initially priced at $32.95. The set was manufactured
for GE by RCA.
The 5 tubes are 58 (RF amp), 2A7 (mixer/LO), 57
(2nd detector), 2A5 (AF amp) & 80 (rectifier). The
small loudspeaker is attached to the chassis and not
mounted separately within the cabinet. Tuning range
is 540 to 1500 kcs standard broadcast and 1400 to
2800 kcs police/amateur. Schematic as for RCA 111.
The K-52 has a continuously variable tone control,
and shares its chassis type with RCA's contemporan-
eous 110 and 111 series. The earlier R-28-P chassis,
such as used for model R28 introduced in the spring
of 1933, provides a two-point tone control. It's very
similar to the 110/111 chassis, which it preceded,
but is incorrect for GE's K-52 from the fall, despite
oft-seen claims to the contrary.
The K-52 has no Automatic-Volume-Control, despite
some ads (e.g. lower left) stating that it does.
...offers you new beauty in tone and cabinet.
Dec 19th 1933, Montana
Oct 23rd 1933,Texas
Nov 10th 1933, Michigan
Nov 6th 1933, Iowa