• Country
• United States of America (USA)

• Manufacturer / Brand
• Electro-Voice Inc.; USA

• Year
• 1955 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 197419

• • Brand: Buchanan

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: Cardak 1 Microphone 725 - Electro-Voice Inc.; USA

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 2.5 x 9 x 3.5 inch / 64 x 229 x 89 mm

• Notes
• Electro-Voice Cardak 1 Model 725 is a poly-directional microphone with a constantly variable sound pick-up pattern. It is adjustable from cardioid to bi-directional (screw at the back side) to reduce any combination of reflected sound. Dual head microphone, with one dynamic element in combination with a diaphragm actuated velocity unit, makes possible the use of the variable pick-up pattern control.
  Available in Hi-Z (direct to grid), 50, 200, 250 or 500 ohms.
  Frequency response: 30...10000 Hz, lower and middle register is flat with a rise of 5 dB from 3000 Hz to upper cut-off.

• Net weight (2.2 lb = 1 kg)
• 3 lb (3 lb 0 oz) / 1.362 kg

• Price in first year of sale
• 55.00 $

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Aglef Tröger. See "Data change" for further contributors.

• Other Models

• Here you find 124 models, 115 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Electro-Voice Inc.; USA