• Country
• United States of America (USA)

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

• Year
• 1958 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 144787

• • Brand: Airline or Air-Line

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

• Number of Tubes
• 6

• Valves / Tubes
• 12BA6 12BE6 12BA6 12AV6 35C5 35W4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 105 - 120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Airline GTM-1639B - Montgomery Ward & Co. Wards,

• Shape
• Tablemodel, low profile (big size).

• Notes
• 2" x 10" PM elliptical speaker.
  The Montgomery Model Airline GTM-1639B is an AC/DC Operated 6 Tube AM Heterodyne Receiver.

• Circuit diagram reference
• Photofact Folder, Howard W. SAMS

• Mentioned in
• Collector's Guide to Antique Radios (7th Edition)

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 9-58, Set 411, Folder 5)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 2291 models, 1459 with images and 1788 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