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R-28 Ch= R-28-P Cathedral, 2 bands

R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 949159) Radio
 
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 949160) Radio
 
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 949161) Radio
 
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 949162) Radio
 
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 949163) Radio
 
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 218457) Radio
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 1769364) Radio R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 655033) Radio
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 655032) Radio R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 474289) Radio
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 474292) Radio R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 552149) Radio
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 552152) Radio R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 474293) Radio
R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 474291) Radio R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 474294) Radio
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R-28 Ch= R-28-P; RCA RCA Victor Co. (ID = 1769364) Radio
RCA RCA Victor Co.: R-28 Ch= R-28-P [Radio] ID = 1769364 689x775
Select picture or schematic to display from thumbnails on the right and click for download.
For model R-28 Ch= R-28-P Cathedral, 2 bands, RCA (RCA Victor Co. Inc.); New York (NY)
 
Country:  United States of America (USA)
Manufacturer / Brand:  RCA (RCA Victor Co. Inc.); New York (NY)
alternative name
 
RCA Manufacturing || Victor Talking Machine
Year: 1933 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 58 2A7 57 2A5 80
Main principle Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast (MW) and Tropical/Marine/Police Band(s) = 150-200m.
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out 1.75 W (unknown quality)
from Radiomuseum.org Model: R-28 Ch= R-28-P [Cathedral, 2 bands] - RCA RCA Victor Co. Inc.; New
Material Wooden case
Shape Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
Dimensions (WHD) 290 x 355 x 190 mm / 11.4 x 14 x 7.5 inch
Notes

R-28-P is actually a chassis for which many different cabinets have been made and marketed not only under RCA but for instance also as General Electric K-52 etc.

Bunis/Slusser calls this cathedral a tombstone, but it has a round top and is a typical cathedral.

There are two very similar schematics, one is for RCA Victor 110, 111 and 115 - see Beitman 1-179 and the other for the chassis R-28-P - see Beitman 1-169. The power consumption is 70W; Range: BC 540-1500 kc; SW: 1400-2800 kc. The tube 58 is the RF amplifier, the 2A7 first detector/oscillator. There is no IF tube but a 3 circuit band filter, followed by the tube57 as second detector and power amplifier 2A5. Thus the receiver GE K-52 has only 5 tuned circuits pus a tickler coil (L6) for the IF

Advertised as Model R-28.

Net weight (2.2 lb = 1 kg) 6.7 kg / 14 lb 12.1 oz (14.758 lb)
Price in first year of sale 19.95 $
Collectors' prices  
External source of data Ernst Erb
Source of data Collector's Guide to Antique Radios 4. Edition
Circuit diagram reference Rider's Perpetual, Volume 4 = ca. 1934 and before
Mentioned in Guide to Old Radios
Literature/Schematics (1) Machine Age to Jet Age II (See also Beitman 1-169 and 1-179.)
Literature/Schematics (2) RCA Victor Service Notes "Red Book" Series


All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)
Here you find 4669 models, 2765 with images and 3809 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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