• Country
• United States of America (USA)

• Manufacturer / Brand
• Olson Radio Corporation, Olson Electronics Inc; Akron, OH

• Year
• 1965 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 196001

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Crystal Microphone M-145 - Olson Radio Corporation, Olson

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 2.5 x 4.5 x 6 inch / 64 x 114 x 152 mm

• Notes
• Olson M-145 Crystal Microphone;
  Made in Japan.

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 42 models, 38 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Olson Radio Corporation, Olson Electronics Inc; Akron, OH