RCA RADIOLAS 21 and 22
SERVICE NOTES Prepared by RCA Service
Department
STAGE SHIELDS
VOLUME CONTROL LOCAL-DISTANT SWITCH OPERATING SWITCH
Figure 2—Top view of receiver chassis showing location of some parts
ELECTRICAL AND PHYSICAL SPECIFICATIONS
Type of receiver—Screen Grid Tuned R.F. Battery.
Recommended Antenna Length—35—60 feet.
Type of Filament Power—Storage Battery or Eliminator.
Type of Plate and Grid Power—"B" and "C" Batteries or
Eliminator.
Number and Type of Tubes—Two UX-222,
2
UX-112A,
1 UX-112A or UX-171A— Total 5.
Number of R.F. Stages—Two.
Type of Detector—Grid condenser and leak.
Number of A.F. Stages—Two.
Type of Loudspeaker (R22 only)—
Magnetic.
5
RADIOTRON SOCKETS
FOR A.F. STAGES
STATION
SELECTOR DIAL
Height ........
Depth .........
Width ........
Weight,
alone
.
.
Weight, packed
R21
10.5 inches
10.0 "
20.5 "
27 Ibs.
40 Ibs.
R22
40.5 inches
22.0
"
21.5"
44
Ibs.
105 lbs.
