• Country
• United States of America (USA)

• Manufacturer / Brand
• Air King Products Co.; Brooklyn (NY)

• Year
• 1947

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 188267

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

• Number of Tubes
• 6

• Valves / Tubes
• 12SK7GT 12SA7GT 12SK7GT 12SQ7GT 35L6GT 35W4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 110-120 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet. / Ø 4.75 inch = 12.1 cm

• Material
• Catalin (a brand name for a thermosetting polymer popular in the 1930s and 1940s - a phenol formaldehyde resin - like Bakelite, but a two-stage process with a lot of work afterwards).

• from Radiomuseum.org
• Model: A-600 Duchess Ch= 4681 [AM, 5 tubes] - Air King Products Co.;

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• Built in loop antenna.

• Mentioned in
• Classic Plastic Radios of the 1930s and 1940s - John Sideli

• Literature/Schematics (1)
• Radio Retailing (Radio & Television R.) (June 1947 page 57.)

• Literature/Schematics (2)
• Table Top Radios Vol. 1 Stein 98 (page 33.)

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Set 26, Date 10/47, Folder 4716-3)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 293 models, 145 with images and 240 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Air King Products Co.; Brooklyn (NY)