• Country
• United States of America (USA)

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

• Year
• 1940

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 263066

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: Unidyne 555C - Shure; Chicago, Evanston,

• Dimensions (WHD)
• 3.25 x 4.5 x 3.5 inch / 83 x 114 x 89 mm

• Notes

• The Shure Unidyne 555C is a high impedance cardioid microphone with a shock mount in lower portion of mic. Through the exclusive Uniphase principle, the 555C Unidyne provides the highly advantageous true cardoid uni-directional pick-up characteristic. It affords wide-angle front-side coverage (both horizontally and vertically) with an average front-to-rear discrimination of 12 to 15 db over a wide frequency range.

  There were 3 different versions of the 555 family of microphones available:

  Model	Impedance
  555A	Low Impedance (50 Ohms)
  555B	Medium Impedance (250 Ohms)
  555C	High Impedance (15,000 Ohms)

   

• Net weight (2.2 lb = 1 kg)
• 4.5 lb (4 lb 8 oz) / 2.043 kg

• Price in first year of sale
• 60.00 USD

• Author
• Model page created by Hannes Gerber. 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)