15

• Country
• United States of America (USA)

• Manufacturer / Brand
• Montgomery Ward & Co. (Wards, Airline); Chicago, IL

• Year
• 1933 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 47674

• • Brand: Airline or Air-Line

• Picture
• Schematics

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

• Number of Tubes
• 5

• Valves / Tubes
• 201A 201A 201A 201A 201A

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); Neutrodyne

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: 15 - Montgomery Ward & Co. Wards,

• Notes

• The mixer is of the autodyne type, wherein it functions as a mixer and also as an oscillator. The IF transformer is of special construction combining the coupling transformer and also the oscillator system.

• External source of data
• Ernst Erb

• Other Models

• Here you find 2308 models, 1468 with images and 1805 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Montgomery Ward & Co. (Wards, Airline); Chicago, IL