Quartz Synthesizer FM/AM Stereo Tuner ST-G7

Technics (brand)

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  • Year
  • 1985–1988
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 154473

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • 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
  • Metal case
  • from Radiomuseum.org
  • Model: Quartz Synthesizer FM/AM Stereo Tuner ST-G7 - Technics brand
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 97 x 276 mm / 16.9 x 3.8 x 10.9 inch
  • Notes

  • A hi-fi quartz synthesizer FM/AM stereo tuner with a digital frequency display housed in a silver or black metal case. Triple Quartz Control for 116dB Dynamic Range, Quartz Double Converter IF, Quartz Controlled Double PLL DC, Peak Sample & Hold MPX, All DC Circuitry, Digital Linear Detector (DL), Auto IF Shuts Out Adjacent Channel Interference, Multi-Function Low-Noise LCD Readout, FM/AM 16-Channel Random Access Preset Memory, Auto Memory, Auto Scan, Reception Quality Detected and Displayed, Signal Strength Readout in Decibels, Quartz Signal Generator for Recording Level Setting, I/O port for interfacing with home computer, FM wing antenna terminal for automatic antenna tuning, FM +25kHz frequency shift switch, can be used with optional SH-4060 programmable timer for automatic tuning of any preset stations over a 1-week period, one week memory backup, LED stereo indicator, LED quartz lock/FM muting off indicator.

    Specification DIN  
    FM TUNER SECTION  
    Frequency range 87.50-108.00MHz
    87.525-108.025MHz (+25kHz shift)
    Antenna terminal/impedance 75Ω (unbalanced)
    Sensitivity 1.2µV (IHF, usable)
     S/N 30dB
     S/N 26dB
     S/N 20dB    		 1.1µV
    1.0µV
    0.9µV
    46dB quieting sensitivity IHF 28µV
    Total harmonic distortion MONO 0.01%, STEREO 0.02%
    Dynamic range 116dB
    Frequency response 4Hz-18kHz +0.2dB,-0.5dB
    Alt. channel selectivity  
     normal ±400kHz
     super narrow ±200kHz    		 55dB
    25dB
    Capture ratio 1.0dB
    Image rejection at 98MHz 105dB
    IF rejection at 98MHz 110dB
    Spurious rejection at 98MHz 110dB
    AM suppression 70dB
    Stereo separation 1kHz 65dB, 10kHz 50dB
    Carrier leak 19kHz -70dB, 38kHz -70dB
    Channel balance (250Hz-6,300Hz) ±1.0dB
    Bandwidth  
     IF amplifier
     FM demodulator    		 180kHz
    1000kHz
    AM TUNER SECTION  
    Frequency range  
     Europe, S. Africa, Australia 522-1629kHz (9kHz step)
    530-1620kHz (10kHz step)
     Saudi Arabia and others 531-1620kHz (9kHz step)
    530-1620kHz (10kHz step)
    Sensitivity (S/N 20dB) 20µV, 290µV/m
    Selectivity (±9 kHz) 55dB
    Image rejection at 999kHz 40dB
    IF rejection at 999 kHz 65dB
    Output voltage 0.6V

    Versions/Power requirements
    120V AC 60Hz
    110/120/220/240V AC 50/60Hz

    Power consumption: 11 watts

  • Net weight (2.2 lb = 1 kg)
  • 4.1 kg / 9 lb 0.5 oz (9.031 lb)
  • Price in first year of sale
  • 525.00 $
  • Mentioned in
  • -- Original prospect or advert (1985-6 and 1988 Technics Hi-Fi catalogues)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Technics ST-G7)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Operating Instructions)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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