• Country
• Finland

• Manufacturer / Brand
• Kajaani Elaktroniikka; Kajaani

• Year
• 1978–1984 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 285047

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / +15, -15, -24 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Telephone interview system 12EA-16 - Kajaani Elaktroniikka; Kajaani

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 80 x 190 x 130 mm / 3.1 x 7.5 x 5.1 inch

• Notes

• Telephone interview system for Kajaani 10EA-series broadcast consoles

  10EA-16

  • 2 line telephone exchange
  • 2 wire to 4 wire hybrid transformer
  • gain controls for incoming signal
  • outputs for studio telephone and control room telephone
  • talkover circuit

  19EA-24

  • dialling module
  • with grounding button for call transfer to broadcast house telephone exchange

  10EA-54

  • Control room telephone
  • to be built into the mixing desk
  • hook switch inside the cup for earpiece.
  • dynamic microphone with amplifier to replace standard carbon mic
  • can be used with automatic telephone exchanges or local battery systems
  • ring voltage button (80 VAC 25 Hz)
  • buttons for call transfer to studio phone
  • studio phone bell on/off switch

  10EA-56

  • studio telephone
  • dynamic microphone to replace standard carbon mic

   

• Mentioned in
• - - Manufacturers Literature (training manual)

• Author
• Model page created by Matti Adolfsen. See "Data change" for further contributors.

• Other Models

• Here you find 16 models, 16 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kajaani Elaktroniikka; Kajaani