Stereo Receiver RX-203

Roland Electronics Co. Ltd., Rotel; Tokyo

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  • Year
  • 1978
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 211678

 Technical Specifications

  • 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) / 100; 120; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 40 W (48 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Stereo Receiver RX-203 - Roland Electronics Co. Ltd.,
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 410 x 130 x 280 mm / 16.1 x 5.1 x 11 inch
  • Notes

  • An AM/FM stereo hi-fi receiver housed in a walnut veneer cabinet with a stereo tuner covering MW and FM and an integrated amplifier with output power of 2 x 20 watts RMS into 8 ohms or 2 x 24 watts into 4 ohms. Signal Strength Meter, Rotary Bass and Treble tone controls, push button switches for Loudness, Tape Monitor and Mode (Stereo/Mono), terminals for FM and AM antennae, RCA and DIN sockets for phono cartridge input (Magnetic and Ceramic) and for Tape Monitor Input/Output, RCA phono sockets for Aux input, terminals for one pair of loudspeakers and a jack for headphones.

    Specification  
    Power Amplifier Section  
    Continuous Power Output 20 watts per channel, min. RMS  
    both channels driven into 8Ω or
    24 watts per channel into 4Ω
    from 20 to 20,000Hz with  
    no more than 0.5% Total Harmonic Distortion
    Total Harmonic Distortion
    (20 - 20,000Hz, from AUX)    		 No more than 0.5%
     
    Intermodulation Distortion No more than 0.5%
    Output: Speaker
                Headphone    		 4 - 16Ω
    4 - 16Ω
    Damping Factor 35 (20 - 20,000Hz, 8Ω)
    Preamplifier Section  
    Input Sensitivity/Impedance  
     PHONO (MAG)
     PHONO (CERAMIC)
     AUX, TAPE IN    		 2.5mV/45kΩ, 200pF
    120mV/240kΩ
    150mV/35kΩ
    Output Level/Impedance
    (5mV PHONO input)    		  
     TAPE OUT
     TAPE OUT DIN    		 300mV/250Ω
    100mV/90kΩ
    Frequency Response  
     PHONO
     AUX, TAPE IN    		 30Hz - 15,000Hz ± 0.5dB (RIAA)
    5Hz - 70,000Hz +0dB,-3dB
    Hum & Noise (IHF)
    (short circ. A network, rated power)    		  
     PHONO (MAG)
     AUX, TAPE IN    		 75dB
    85dB
    FM Tuner Section  
    Usable Sensitivity  
     Mono
     Stereo    		 11.2dBf (2.0µV/300Ω)
    20dB (5.5µV/300Ω)
    Signal-to-Noise Ratio (at 65dBf)  
     Mono
     Stereo    		 75dB
    65dB
    Frequency Response 30Hz - 15,000Hz +0.2dB,-2dB
    Capture Ratio 2.0dB
    Stereo Separation 40dB (1kHz), 30dB (30Hz - 15kHz)
    Antenna Input 300Ω balanced, 75Ω unbalanced
    AM Tuner Section  
    Sensitivity 250µV/m (IHF, ferrite antenna),
    12.5µV (IHF, ext. antenna)
    Selectivity 25dB
    Signal-to-Noise Ratio 50dB
    Antenna internal ferrite loopstick antenna

    Versions/Power Requirements
    USA & Canada / 120V AC 60Hz
    Europe / 220V AC 50Hz
    UK / 240V AC 50Hz
    Multi-Voltage / 100/120/220/240V AC 50/60Hz switchable

    Power Consumption: 140W

  • Net weight (2.2 lb = 1 kg)
  • 7 kg / 15 lb 6.7 oz (15.419 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Technical Manual RX-203 dated May 1978)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Owner's Manual RX-203 Stereo AM/FM Receiver)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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