Stereo Amplifier A-7055

Onkyo, Osaka Denki Onkyo K.K.; Osaka

  • Year
  • 1972–1974 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 213984

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

 Technical Specifications

  • Number of Transistors
  • 39
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110-220; 220-240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 70 W (125 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Amplifier A-7055 - Onkyo, Osaka Denki Onkyo K.K.;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 423 x 136 x 358 mm / 16.7 x 5.4 x 14.1 inch
  • Notes
  • also 18 diodes & 2 Thermistors

    From Service manual:

    26W per channel 8 Ohms, both channels driven, 33W single channel

    36W per channel 4 Ohms, both channels driven, 45W single channel

    0.1% THD at rated power, 0.03% at 10W

    Main amplifier 10Hz to 70KHz (+0 -1dB)

    Magnetic cartridge input with 3 gain settings:  -6 dB , 0 dB, +6 dB

    T-4055 is companion Tuner (MW (BC)  & FM-VHF) covered in the same service manual.

     

     

     

  • Net weight (2.2 lb = 1 kg)
  • 9.3 kg / 20 lb 7.8 oz (20.485 lb)

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