• Country
• United States of America (USA)

• Manufacturer / Brand
• Astatic Corp.; Conneaut (OH)

• Year
• 1938

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 96294

• • alternative name: Omnitronics LLC

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

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Crystal Microphone D-104 - Astatic Corp.; Conneaut OH

• Notes

• Astatic Crystal Microphone D104.

  Output Level: -54 dB, 30-8000 Hz.

  D 104 RS with switch in handle.

• Price in first year of sale
• 23.00 $

• Mentioned in
• Radio Shack Catalog (1939, page 65)

• Literature/Schematics (1)
• 1938 Radolek Catalog

• Author
• Model page created by Vitor Oliveira. See "Data change" for further contributors.

• Other Models

• Here you find 46 models, 44 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Astatic Corp.; Conneaut (OH)