FM Stereo / FM-AM Tuner ST-JX741

Sony Corporation; Tokyo

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  • Year
  • 1994
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 214513

 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
  • Remote Control (with wire or wireless)
  • Power type and voltage
  • Alternating Current supply (AC) / 120 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: FM Stereo / FM-AM Tuner ST-JX741 - Sony Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 80 x 295 mm / 16.9 x 3.1 x 11.6 inch
  • Notes

  • A hi-fi AM/FM stereo tuner with a digital frequency display housed in a black metal case, with memory for 30 Random Preset Stations. Provision for wired system remote control. With Power switch, Memory Scan button, Memory button, Stereo/Mono button, Band button, Shift button, Tuning/Preset control and 10 Numeric buttons. On the back, terminals for AM and FM antenae, RCA phono socket for line Output, and a Control S input connector for remote control.

    Specification  
    FM tuner section  
    Tuning range 87.5-108MHz
    Antenna terminals 75Ω unbalanced, 300Ω balanced
    Sensitivity (at 50dB quieting) 22.1dBf, 7µV (mono),
    42.1dBf, 70µV (stereo)
    Usable sensitivity 19.5dBf, 5µV (IHF)
    Signal-to-noise ratio
    (at 75kHz deviation)    		 80dB (mono), 75dB (stereo)
    Harmonic distortion 0.3% (mono), 0.5% (stereo) at 1kHz
    Separation 35dB at 1kHz
    Frequency response 30Hz-15kHz +0.5dB,-2.0dB
    Selectivity 55dB at 400kHz
    AM suppression ratio 54dB
    Image response ratio 50dB
    IF response ratio 90dB
    Spurious response ratio 70dB
    Auto. tuning threshold 17.8µV (30dBf)
    Output 775mV, 4.7kΩ (at 75kHz deviation)
    AM tuner section  
    Tuning range 530-1,710 kHz (10kHz)
    531-1,710 kHz (9kHz)
    Antenna AM loop antenna,
    External antenna terminal
    Usable sensitivity
    AM loop antenna    		 500µV/m (1,000 kHz)
    Signal-to-noise ratio 54dB
    Harmonic distortion 0.5%
    Selectivity 38dB (10kHz)

    Versions/Power requirements
    USA / 120V AC 60Hz

    Power consumption: 8 Watts

  • Net weight (2.2 lb = 1 kg)
  • 2.6 kg / 5 lb 11.6 oz (5.727 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Sony ST-JX741 dated 1994.7)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Operating Instructions ST-JX741 dated 1994)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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