31

Zenith Radio Corp.; Chicago, IL

Data
Forum
Pictures
Collections

  • Year
  • 1928
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 67414
    • alternative name: Chicago Radio Lab

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • TRF without regeneration
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 31 - Zenith Radio Corp.; Chicago,
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 26 x 11 x 13 inch / 660 x 279 x 330 mm
  • Notes
  • One dial (primary tuning control knob)
  • Price in first year of sale
  • 100.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

 Collections | Museums | Literature

 Forum

Forum contributions about this model: Zenith Radio Corp.;: 31

Threads: 1 | Posts: 1

Zenith modelnumbers 31, 33, 33X, 41, 333und 333X

        

The image shows model 31

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)

Hans Amberger, 13.Apr.06

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