FM Stereo/FM-AM Tuner ST-73

Sony Corporation; Tokyo

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  • Year
  • 1977 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 321443

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 10700/455 or 468 kHz
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: FM Stereo/FM-AM Tuner ST-73 - Sony Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 360 x 84 x 254 mm / 14.2 x 3.3 x 10 inch
  • Notes

  • A hi-fi AM/FM stereo tuner with an analogue dial housed in a wooden case. With a Signal Strength meter, Muting switch, rotary Function switch (AM, FM Auto Stereo, FM Mono), terminals for AM and FM aerials and RCA phono Line Output sockets.

    Specification  
    FM Section 87.5MHz-108MHz
    Intermediate Frequency 10.7MHz
    Usable Sensitivity 2.5µV (IHF)
    2.0µV, S/N 30dB (40kHz deviation)
    S/N Ratio 65dB
    Harmonic Distortion at 400Hz 0.5% (MONO), 0.8% (STEREO)
    Separation 35dB at 1kHz
    Frequency Response 30Hz-15kHz +1dB,-3dB
    Capture Ratio 1.5dB
    AM Suppression Ratio 45dB
    Image Rejection 35dB
    IF Rejection 90dB
    Spurious Rejection 70dB
    Output Level/Impedance 770mV/10kΩ at 100% modulation
    Antenna Terminals 300Ω balanced, 75Ω unbalanced
    AM Section 530kHz-1605kHz
    Intermediate Frequency 455kHz (AUS, E), 468kHz (UK)
    Usable Sensitivity 300µV/m, built-in antenna
    100µV, external antenna at 1,000kHz
    S/N Ratio 50dB at 50mV/m
    Harmonic Distortion 0.6% at 50mV/m, 400Hz
    Image Rejection 35dB at 1,000kHz
    IF Rejection 40dB at 1,000kHz
    Antenna Built-in ferrite-rod antenna
    External antenna terminal

    Versions/Power Requirements:
    E / 110, 120, 220 or 240V AC 50/60Hz with voltage selector
    UK / 240V AC 50/60Hz
    AUS / 240V AC 50/60Hz

    Power Consumption:  15W

    Made in Taiwan

  • Net weight (2.2 lb = 1 kg)
  • 3.5 kg / 7 lb 11.3 oz (7.709 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual ST-73 dated 1977)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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