Quartz Synthesizer AM-FM Stereo Tuner KT-990D Europe, UK

Kenwood, Trio-Kenwood Inc.; Komagane

  • Year
  • 1988/1989
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 327034
    • alternative name: Trio Corp.
    • Brand: Jennen

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop; ZF/IF 450/10700 kHz
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Quartz Synthesizer AM-FM Stereo Tuner KT-990D [Europe, UK] - Kenwood, Trio-Kenwood Inc.;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 440 x 78 x 331 mm / 17.3 x 3.1 x 13 inch
  • Notes
  • A hi-fi quartz synthesizer AM-FM stereo tuner with a digital frequency display housed in a black metal case. New Direct Linear Reception Circuit (DLRC), Direct Linear Loop FM Detector (DLLD), IF Distortion Correcting Circuit (DCC), Direct Pure MPX Decoder (DPD), Pentacle Power Supply system, Active Reception Control with RF and IF selectors, Recording level calibration, 20-station preset, 3-station preprogramming. On the rear, terminals for an AM loop antenna, connector for an FM coaxial antenna and RCA phono Line Output sockets.

    FM Tuner section  
    Frequency range 87.5MHz-108MHz
    Antenna impedance 75Ω unbalanced, 300Ω balanced
    Sensitivity (DIN)  
     Mono: S/N-26dB/40kHz Dev.
     Stereo: S/N-46dB/46kHz Dev.
    S/N ratio  
     Mono (40kHz Dev.) 78dB (Unweighted 65.2dBf input)
    82dB (weighted 65.2dBf input)
     Stereo (46kHz Dev.) 67dB (Unweighted 65.2dBf input)
    72dB (weighted 65.2dBf input)
    Total harmonic distortion (DIN) WIDE  
     Mono (40kHz Dev., 1kHz)
     Stereo (46kHz Dev., 1kHz)
    Capture ratio WIDE 2.0dB, NARROW 3.5dB
    Alt. channel selectivity (DIN) NARROW 75dB (±300kHz)
    Stereo separation (DIN)  
    WIDE: 1kHz, (65.2dBf input)
            6.3kHz, (65.2dBf input)
    Frequency response 20Hz-15kHz ±0.5dB
    Spurious rejection ratio (98MHz) 105dB
    Image rejection ratio (98MHz) 82dB
    IF rejection ratio (98MHz) 110dB
    AM suppression ratio 76dB
    Subcarrier suppression ratio (DIN)  
     19kHz, 46kHz Dev.
     38kHz, 46kHz Dev.
    Output level/impedance at 1kHz, 100% Dev. 600mV/3.3kΩ Fixed
    AM Tuner section  
    Frequency range 531kHz-1602kHz
    Usable sensitivity (Loop) 10µV (250µV/m)
    S/N ratio (30% Mod, 1mV input) 55dB
    Total harmonic distortion 0.25%
    Image rejection ratio (Loop) 40dB
    Selectivity (IHF)  30dB
    Output level/impedance
    (400Hz, 30% Mod.)
    180mV, 3.3kΩ

    Versions/Power requirements
    Europe  /  AC 220V AC 50Hz
    UK  /  240V AC 50Hz

    Power consumption: 20 watts

    Very similar to the Kenwood KT-990D Quartz Synthesizer AM-FM Stereo Tuner USA model.

  • Net weight (2.2 lb = 1 kg)
  • 4 kg / 8 lb 13 oz (8.811 lb)
  • Mentioned in
  • -- Original prospect or advert (1988-89 Kenwood Audio Components catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Kenwood KT-990D)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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