Super Servo Operation Integrated Stereo Amplifier A-7070

Onkyo, Osaka Denki Onkyo K.K.; Osaka

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  • Year
  • 1980
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 192766

 Technical Specifications

  • Number of Transistors
  • 37
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 60 Hz: 120 V or 50-60 Hz: 110; 120; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 140 W (max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Super Servo Operation Integrated Stereo Amplifier A-7070 - Onkyo, Osaka Denki Onkyo K.K.;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 420 x 130 x 400 mm / 16.5 x 5.1 x 15.7 inch
  • Notes

  • Stereo power amplifier with 70 Watts RMS per channel at 8 Ω, from 20 to 20,000 Hz with no more than 0.02% total harmonic distortion.
    Frequency response: 15 ÷ 50,000 Hz (± 1 dB); RIAA deviation: 20 ÷ 20,000 Hz (± 0.3 dB).
    Input sensitivity and impedance:
    - Phone 1 & 2:      2.5 mV, 50 kΩ
    - Tuner:                150 mV, 50 kΩ
    - AUX:                  150 mV, 50 kΩ
    -Tape Play 1 & 2: 150 mV, 50 kΩ
    Tone control: Bass ± 10 dB at 100 Hz. Treble: ± 10 dB at 10 kHz. Loudness: + 5 dB at 100 Hz and 10 kHz.
    Outputs: Speaker A & B; Phones; Tape Rec 1 & 2
    37 Transistors, 10 ICs, 22 Diodes and 4 Rectifier Diodes, listed one per type and not all.

    Price in Italy in 1980: 480.000 ITL.

  • Net weight (2.2 lb = 1 kg)
  • 10.6 kg / 23 lb 5.6 oz (23.348 lb)
  • Mentioned in
  • Review, Discoteca Hi-Fi, Anno XXI n. 212, Dicembre 1980; Italy
  • Literature/Schematics (1)
  • -- Original-techn. papers. (Original Service Manual)
  • Author
  • Model page created by Alessandro De Poi. See "Data change" for further contributors.

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