• Country
• United States of America (USA)

• Manufacturer / Brand
• Shure; Chicago, Evanston, Niles (IL)

• Year
• 1942

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 133808

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: Uniplex 730S - Shure; Chicago, Evanston,

• Dimensions (WHD)
• 3.13 x 3.13 x 3.38 inch / 80 x 80 x 86 mm

• Notes
• Cardoid crystal microphone. Type 730SH without desk mount (35 USD).

• Net weight (2.2 lb = 1 kg)
• 2.5 lb (2 lb 8 oz) / 1.135 kg

• Price in first year of sale
• 39.00 $

• Mentioned in
• The radio amateur's handbook 1942. Cat. sec. p 75

• Author
• Model page created by Otto Frosinn. See "Data change" for further contributors.

• Other Models

• Here you find 134 models, 129 with images and 51 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Shure; Chicago, Evanston, Niles (IL)