FM Stereo / FM-AM Tuner ST-A35L

Sony Corporation; Tokyo

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  • Year
  • 1980/1981
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 225466

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superhet with RF-stage; ZF/IF 450/10700 kHz
  • Wave bands
  • Broadcast, Long Wave 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
  • Metal case
  • from Radiomuseum.org
  • Model: FM Stereo / FM-AM Tuner ST-A35L - Sony Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 80 x 345 mm / 16.9 x 3.1 x 13.6 inch
  • Notes

  • A hi-fi AM/FM stereo tuner with an analogue dial, housed in a silver metal case. Features Acute Servo Lock tuning with three LED tuning indicators, variable capacitor RF front end with four-gang FM and two-gang AM tuning. With rotary tuning control, tuning indicators, five LED signal strength indicators, push button switches for calibration tone, hi blend, high/low level, and muting/stereo. On the back, an adjustable ferrite rod aerial, terminals for AM and FM antennae, and RCA phono line output sockets.

    Specification  
    System FM stereo, FM/AM superheterodyne tuner
    Acute Servo Lock System
    FM tuner section  
    Tuning range 87.5MHz - 108MHz
    Antenna terminals 300Ω balanced, 75Ω unbalanced
    Sensitivity at 46dB quieting 17.3dBf, 4µV (mono)
    37.9dBf, 43µV (stereo)
    Usable sensitivity 10.8dBf, 1.9µV (IHF)
    1.4µV (S/N 26dB)
    Signal/noise ratio 77dB (mono), 72dB (stereo)
    Harmonic distortion 0.1% (mono), 0.2% (stereo) at 100 Hz
    IM distortion 0.1% (mono), 0.2% (stereo)
    Separation at 100Hz 45dB
    Frequency response 40Hz - 12.5kHz ±0.3dB
    30Hz - 15kHz +0.3dB,-2dB
    Selectivity 80dB at 300kHz
    Capture ratio 1.0dB
    AM suppression ratio 60dB
    Image response ratio 85dB
    IF response ratio 95dB
    Spurious response ratio 95dB
    Muting threshold approx. 25.2dBf/10µV  (at LOW)
    approx. 45.2dBf/100µV (at HIGH)
    Output level/impedance 750mV/4.7kΩ (at 75kHz deviation)
    Calibration tone 50% modulation
    (at 37.5kHz deviation)    		 400Hz
    AM tuner section  
    Tuning range MW 522kHz - 1,602kHz
    LW 155kHz - 344kHz
    Antenna built-in antenna, external antenna
    Usable sensitivity  
      built-in antenna MW 200µV/m (at 1,000kHz)
    LW 450µV/m (at 250kHz)
      external antenna MW 100µV (at 1,000kHz)
    LW 100µV (at 250kHz)
    Image response ratio MW 45dB (at 1,000kHz)
    LW 75dB (at 250kHz)
    Signal/noise ratio 55dB
    Harmonic distortion 0.5%
    Selectivity 45dB (9kHz)

    Versions/Power requirements           
    Type 1 : 220V AC 50/60Hz
    Type 2 : 240V AC 50/60Hz
    Type 3 : 110, 120, 220, 240V AC 50/60Hz adjustable

    Power consumption:    10 W

    The Sony ST-A35S FM Stereo / FM-AM Tuner is similar with SW in place of LW.

    Made in Korea

  • Net weight (2.2 lb = 1 kg)
  • 4.1 kg / 9 lb 0.5 oz (9.031 lb)
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating Instructions manual ST-A35L ST-A35S dated 1980)
  • Literature/Schematics (2)
  • -- Original prospect or advert (1981 Sony Audio catalogue)

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