Pre-Amplifier Beta 20

Nikko Electric Manufacturing Co., Ltd.; Tokyo

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  • Year
  • 1980
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 283248

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Pre-Amplifier Beta 20 - Nikko Electric Manufacturing
  • Shape
  • Rack
  • Dimensions (WHD)
  • 482 x 70 x 330 mm / 19 x 2.8 x 13 inch
  • Notes

  • Nikko Stereo Pre-Amplifier Model Beta 20.
    Frequency response: 10Hz to 100kHz
    Total harmonic distortion: 0.007%
    Input sensitivity: 0.2mV (MC), 2mV (MM), 110mV (line)
    Signal to noise ratio: 67dB (MC), 80dB (MM), 95dB (line)
    Output: 110mV (line), 1V (Pre out)
    Tone Controls:
    Bass - 70Hz, +/-8dB
    Treble - 10000Hz, +/-8dB
    Subsonic Filter: 15Hz - 12dB/Oct.
    Loudness Control: 70 Hz - 11+/-2dB, 10000Hz - 5+/-2dB

    Power Requirement:
    W-Type: U.S.A. & Canada Model - 120VAC, 60Hz
    E-Type: European Model - 220VAC, 50Hz
    B-Type: U.K. Model - 240VAC, 50Hz
    Power Consumption 18 Watts

     

  • Net weight (2.2 lb = 1 kg)
  • 5.2 kg / 11 lb 7.3 oz (11.454 lb)
  • Mentioned in
  • - - Manufacturers Literature (Service Manual)
  • Literature/Schematics (1)
  • Nikko Catalogue - 'Audio'
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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