AM/FM Stereo Tuner RT-820

Rotel, The, Co., Ltd.; Tokyo

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  • Year
  • 1982 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 288609

 Technical Specifications

  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AM/FM Stereo Tuner RT-820 - Rotel, The, Co., Ltd.; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 66 x 319 mm / 16.9 x 2.6 x 12.6 inch
  • Notes

  • An AM/FM stereo hi-fi tuner covering MW and FM with an analogue dial with an LED pointer. Rotary Tuning control, press buttons for Power, Mute Off/Mono, AM and FM, FM Stereo indicator and 3 LED Signal Strength indicator, an adjustable AM ferrite bar antenna on the back, connections for AM and FM antennae, Line Output interconnect cable with phono plugs.

    Specification  
    FM Tuner Section  
    Usable Sensitivity (mono) 11.2dBf/2.0µV
    50dB Quieting Sensitivity Mono   16dBf/3.5µV
    Stereo  39.4dBf/50µV
    Signal-to-Noise Ratio  (at 65dBf) Mono    70dB
    Stereo  65dB
    Harmonic Distortion (at 65dBf) 1 kHz 0.3% (mono), 0.6% (stereo)
    Frequency Response 35 - 13,500Hz ,+1.5dB, -1.5dB
    Capture Ratio 2.0dB
    Alternate Channel Selectivity (±400kHz) 60dB
    Spurious Response Rejection 68dB
    Image Response Ratio 45dB
    IF Response Ratio 75dB
    AM Suppression Ratio 62dB
    Stereo Separation 100Hz/1kHz/10kHz,
    33dB/38dB/33dB)
    Antenna 300Ω balanced, 75Ω unbalanced
    AM Tuner Section  
    Sensitivity 300µV/m
    Selectivity  30dB
    Signal-to-Noise Ratio 45dB
    Image Response Ratio 35dB
    IF Response Ratio 35dB
    Antenna Built-in ferrite loopstick antenna

    Versions/Power Requirements
    120 V AC 60Hz
    220 V AC 50Hz
    240 V AC 50Hz
    120/220/240 V AC 50/60Hz Switchable (not available in UK, Canada and Scandinavia)

    Power consumption:  8 watts

    Similar to the Rotel RT-820L model which additionally has LW.

  • Net weight (2.2 lb = 1 kg)
  • 3.1 kg / 6 lb 13.3 oz (6.828 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's manual RT-820 RT-820L)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Technical manual RT-820 RT-820L dated July 1982)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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