Modelpage for model 31 from Radiomuseum.ORG (ID67414)

 

Manufacturer/Brand                                 Zenith Radio Corp.; Chicago, Illinois

Country:                                                            United States of America (USA)

Year:                                                                  1928

Principle:                                           TRF without reaction (non reg.dir.receiver)

Tuned circuits:                                                             4 AM circuit(s);

Wave bands:                                    Broadcast only (MW).

Specialitis:                                       

Power type and voltage:                 Batteries (storage and/or dry)

Loudspeaker:                                               - This set has no built-in loudspeaker (separate or not necessary).

Material:                                            Wooden case

Shape:                                                          Tablemodel, with any shape - general.

Dimensions (WHD):                         6: 01A   01A   01A   01A   01A   71  

Valves/Tubes:                                             One dial (primary tuning control knob)  

Notes:                                                One dial (primary tuning control knob)

Net weight:                                       

Price in the first year of sale:                             100 $

Source of data:                                                        Ernst Erb  

Catalog reference:                           Radio Collector`sGuide 1921

Circuit diagram reference:              Rider's Perpetual, Volume 1

Mentioned in:                                                The Radio CollectorGrinder, 1995

 

 

The following Zenith models use the same cabinett:

 

Model 33    from 1928        uses  7 Tubes nr: (27-27-27-27-27-UX171A and 80)

Model 33X  from 1929        uses  7 tubes nr: (27-27-27-27-27-71 and 80)

Model 41    from 1929        uses  7 tubes nr: (24-27-27-27-27-45-45 and 80)

Model 333  from 1928        uses  7 tubes nr: (unknown)

Model 333X from 1928/29    uses  7 tubes.nr: (unknown)

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