AM-FM Stereo Tuner KT-7300

Kenwood, Trio-Kenwood Inc.; Komagane

  • Year
  • 1975–1978
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 260242
    • alternative name: Trio Corp.
    • Brand: Jennen

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • 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; 110-120; 220-240; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AM-FM Stereo Tuner KT-7300 - Kenwood, Trio-Kenwood Inc.;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 149 x 376 mm / 16.9 x 5.9 x 14.8 inch
  • Notes
  • A hi-fi AM/FM stereo tuner with an analogue dial housed in a metal case. Optional rack handles. With Signal and Tuning meters, FM Stereo indicator, on/off switches for MPX Filter and Muting, rotary Tuning and Output Level controls, rotary selector switch (AM, FM Auto, FM Mono). On the back, an adjustable ferrite rod AM antenna, terminals for AM and FM antennae, RCA phono sockets for Line output, FM Multipath and FM Detector output, and a de-emphasis switch.

    Specification  
    FM TUNER SECTION  
    Frequency Range 88MHz-108MHz
    Antenna Impedance 300Ω balanced, 75Ω unbalanced
    Usable Sensitivity (IHF) 1.8µV
    50dB Quieting 3.8µV (MONO), 45µV (STEREO)
    Harmonic Distortion (at 400Hz 100% Mod) 0.1% (MONO), 0.2% (STEREO)
    S/N Ratio  (at 1mV Input 100% Mod) 75dB (MONO), 68dB (STEREO)
    Capture Ratio 1.0dB
    Selectivity (IHF ALT Channel) ≥ 80dB
    Image Rejection ≥ 85dB
    IF Rejection ≥ 90dB
    AM Suppression ≥ 60dB
    Spurious Signal Rejection ≥ 90dB
    Stereo Separation 400Hz 45dB, 50Hz-10kHz 35dB
    Sub Carrier Suppression ≥ 65dB
    Frequency Response 50Hz-10kHz +0.2dB,-0.3dB
    30Hz-15kHz +0.2dB,-1.5dB
    AM TUNER SECTION  
    Frequency Range 525kHz-1605kHz
    Usable Sensitivity (IHF) 18µV
    Harmonic Distortion 0.5%
    Image Rejection ≥ 60dB
    S/N Ratio (at 1mV Input 30% Mod) 50dB
    Selectivity (IHF ALT Channel) 35dB
    OUTPUT VOLTAGE/IMPEDANCE  
    FM (at 400Hz 100% Mod) 0-1.2V/2.5kΩ
    AM (at 400Hz 30% Mod)  0-0.3V/2.5kΩ
    Multipath Output 0.2V/1kΩ
    FM DET Out 250mV/1.5kΩ

    Versions/Power requirements
    USA, Canada / 120V AC 50/60Hz
    General / 110-120/220-240 AC 50/60Hz with voltage selector
    Scandinavia / 220V AC 50/60Hz
    UK / 240V AC 50/60Hz
    Europe / 120/220V AC 50/60Hz with voltage selector

    Power Consumption:   20 Watts

  • Net weight (2.2 lb = 1 kg)
  • 8 kg / 17 lb 9.9 oz (17.621 lb)
  • Mentioned in
  • -- Original prospect or advert (1976 and 1977-78 Kenwood Hi-Fi Stereo catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Kenwood KT-7300 dated 1975)
  • Author
  • Model page created by Peter Böhm. See "Data change" for further contributors.

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