• Country
• United States of America (USA)

• Manufacturer / Brand
• Kellogg Switchboard & Supply Co.; Chicago (IL)

• Year
• 1931

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 92215

• • Brand: Wavemaster

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

• Wave bands
• - without

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: 29 Microphone - Kellogg Switchboard & Supply

• Dimensions (WHD)
• 0 x 6.5 x 0 inch / 0 x 165 x 0 mm

• Net weight (2.2 lb = 1 kg)
• 0.3 kg / 0 lb 10.6 oz (0.661 lb)

• Mentioned in
• "Radio" Ausgabe 01/1931

• Author
• Model page created by Daniel Consales. See "Data change" for further contributors.

• Other Models

• Here you find 66 models, 25 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kellogg Switchboard & Supply Co.; Chicago (IL)