• Country
• Spain

• Manufacturer / Brand
• Optimus; Gerona

• Year
• 1980 ??

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 220267

• • alternative name: Pla Hermanos y Cía

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 2 x 1.5 Volt

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: Super Cardioid Condenser Microphone CM-810 - Optimus; Gerona

• Dimensions (WHD)
• 20 x 425 x 0 mm / 0.8 x 16.7 x 0 inch

• Notes
• Super cardioid condenser microphone, with internal IC preamplifier. 30Hz to 18KHz frequency response, 600 ohms out impedance. XLR-3 out connector.
  Two AA batteries.
  Probably made in Japan and only branded Optimus.

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 197 models, 131 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Optimus; Gerona