Stereo Receiver SX-7730

Pioneer Corporation; Tokyo

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  • Year
  • 1974–1976
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 326446

 Technical Specifications

  • Number of Transistors
  • 47
  • 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) / 110; 120; 130; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 70 W (80 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Stereo Receiver SX-7730 - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 500 x 158 x 410 mm / 19.7 x 6.2 x 16.1 inch
  • Notes

  • A hi-fi stereo receiver with an analogue dial housed in a wooden case, with an AM/FM stereo tuner and an integrated amplifier with power output of 2 x 35 watts RMS into 8 ohms or 2 x 40 watts RMS into 4 ohms. With Signal and Tuning meters, FM Stereo indicator, rotary Tuning, Volume, Balance, Bass and Treble controls, rotary switches for Function (AM, FM, Phono, Mic, Aux) and Rec Selector (FM, Phono, Source, Duplicate), push button switches for Speakers A and B, Low and High Filters, Tape Monitor 1 and 2, Loudness, FM Muting and Mono and jacks for Headphones and Microphone. On the back, an adjustable ferrite bar AM antenna, terminals for AM and FM antennae, RCA phono sockets for input Phono and Aux, for Rec/PB Tape1 and Tape2, DIN socket for Tape Rec/PB, FM De-emphasis switch (25µs, 50µs, 75µs), terminals for 2 pairs of loudspeakers and 2 AC outlets.

    Specifications  
    Amplifier Section  
     Continuous Power Output
     Both channels driven 20Hz-20kHz    		 35W + 35W into 8Ω
    40W + 40W into 4Ω
      Harmonic Distortion 0.5%
      Intermodulation Distortion 0.5%
    Output Speaker
    Headphones    		 A, B, A + B, 4Ω-16Ω
    Low Impedance
    Damping Factor (1kHz, 8Ω) 40
    Input Sensitivity/Impedance  
      PHONO, MIC
      AUX, TAPE PB 1,2
      TAPE PB 2 (DIN connector)    		 2.5mV/50kΩ
    150mV/50kΩ
    150mV/50kΩ
    Output Level/Impedance  
      TAPE REC 1, 2
      TAPE REC 2 (DIN connector)    		 150mV
    30mV/80kΩ
    Frequency Response  
      PHONO (RIAA equalization)
      AUX, TAPE PB    		 30Hz-15kHz ±0.3dB
    15Hz-40kHz +0.5dB,-1dB
    Hum & Noise (IHF,
    short-circuited, A Network)    		 PHONO 70dB, MIC 65dB
    AUX, TAPE PB  95dB
    FM Section  
    Usable Sensitivity (IHF) 1.9µV
    Capture Ratio (IHF) 1.0dB
    Selectivity (IHF) 60dB
    S/N Ratio 70dB
    Harmonic Distortion MONO 0.2%, STEREO 0.4%
    Frequency Response 20Hz-15kHz +0.2dB,-2.0dB
    50Hz-10kHz +0.2dB,-0.5dB
    Antenna Input 300Ω Balanced, 75Ω Unbalanced
    AM Section  
    Sensitivity (IHF, Ferrite antenna) 300µV/m
    (IHF, Ext. antenna) 15µV
    Selectivity 35dB
    S/N Ratio 50dB

    Semiconductors
    FET 1, ICs 3, Transistors 46, Diodes 22

    Power requirements
    110/120/130/220/240V AC 50/60Hz with voltage selector.

    Power consumption: 280 W

    Similar to the Pioneer SX-737 Stereo Receiver which has a silver fascia.

  • Net weight (2.2 lb = 1 kg)
  • 13.2 kg / 29 lb 1.2 oz (29.075 lb)
  • Mentioned in
  • -- Original prospect or advert (1974/75 Pioneer Hi-Fi Stereo catalogue)
  • Literature/Schematics (1)
  • -- Original prospect or advert (1975/76 Pioneer HiFi Stereo Components)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Owner's manual SX-7730)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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