• Country
• Japan

• Manufacturer / Brand
• Pioneer Corporation; Tokyo

• Year
• 1974–1976

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 123994

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

• Number of Transistors
• Semiconductors present.

• 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-737 - 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), toggle switches for Low and High Filters, Tape Monitor 1 and 2 and Loudness, push button switches for Speakers A and B, 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, and terminals for 2 pairs of loudspeakers.

  FM/AM-Stereo-Receiver mit 2 x 35 Watt Sinus an 8 Ohm oder 2 x 40 Watt Sinus an 4 Ohm. Eingänge für: 2× Tape, Phono, Aux.

  Tuning range: FM, MW
  Power output: continuous both channels driven at 20Hz-20kHz
     35 watts per channel into 8Ω (stereo)
     40 watts per channel into 4Ω (stereo)
  Frequency response:
       Phono RIAA: 30Hz - 15kHz ±0.3dB
       AUX, TAPE, PB: 15Hz - 40kHz
  Total harmonic distortion:
      0.5% at continuous rated power output
      0.05% at 1 Watt per channel power output, 8Ω
  Damping factor: 40 at 1kHz, 8Ω
  Hum/Noise (IHF, short-circuited,A Network):
      PHONO: more than 70dB
      MIC: more than 65dB
      AUX, TAPE, PB: more than 95dB
  Intermodulation Distortion: no more than 0.5% 
  Tone control:
      BASS: ±10dB at 100Hz
      TREBLE: ±10dB at 10kHz
  Filter:
      LOW: -9dB at 50Hz 6dB/oct
      HIGH: -9dB at 10kHz 6dB/oct
  Loudness Contour: volume set at -40dB
      +8dB at 100Hz and +3dB at 10khz
  Input sensitivity: 2.5mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
  Signal to noise ratio: 65dB (mic), 70dB (MM), 95dB (line)
  Output: 150mV (line), 30mV (DIN)
  Speaker load impedance: 4Ω (minimum)

  Versions/Power Requirements
  120V AC 60Hz
  220V 50/60Hz
  110, 120, 130, 220 and 240V AC 50/60Hz switchable

  Power Consumption: 190W (UL approved model only), 280W (Other models)

  Similar to the Pioneer SX-7730 Stereo Receiver which has a black fascia rather than silver, push button switches instead of toggle switches, an FM de-emphasis switch and AC outlets.

• Net weight (2.2 lb = 1 kg)
• 13.2 kg / 29 lb 1.2 oz (29.075 lb)

• Source of data
• - - Data from my own collection

• 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 (Service manual Pioneer SX-737)

• Author
• Model page created by Peter Böhm. See "Data change" for further contributors.

• Other Models

• Here you find 1147 models, 1131 with images and 201 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Pioneer Corporation; Tokyo