Stereo Tuner RT-925

Roland Electronics Co. Ltd., Rotel; Tokyo

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  • Year
  • 1976
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 288536

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455/10700 kHz
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Tuner RT-925 - Roland Electronics Co. Ltd.,
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 480 x 150 x 350 mm / 18.9 x 5.9 x 13.8 inch
  • Notes

  • An AM/FM stereo hi-fi tuner covering MW and FM housed in a metal case. With FM Tuning meter, Signal Strength meter, jack for headphones, rotary Phones Level and Output Level controls, rotary Funtion switch (FM Auto, Stereo Only, FM Mono, AM), switches for Hi-Blend, Multipath, De-Emphasis and Muting, an adjustable AM ferrite bar aerial on the back, terminals for AM and FM antennae, RCA phono sockets for Fixed and Variable Line Output and for FM Detector output.

    Specification  
    FM Tuner Section  
    Usable Sensitivity  
     Mono
     Stereo    		 9.9dBf | (1.7µV/300Ω)
    15dBf (3.1µV/300Ω)
    Signal-to-Noise Ratio (at 65dBf)  
     Mono
     Stereo    		 70dB
    65dB
    Distortion (at 65dBf)  
     100Hz & 1kHz
     6kHz    		 0.1% (mono), 0.3% (stereo)
    0.3% (mono), 0.5% (stereo)
    Frequency Response 30Hz to 15,000Hz +0.3dB,-1dB
    Alternate Channel Selectivity 80dB
    Stereo Separation 30dB (30Hz to 15kHz)
    Antenna Input 300Ω balanced, 75Ω unbalanced
    AM Tuner Section  
    Sensitivity 250µV/m (IHF, ferrite antenna),
    12.5µV (IHF, ext. antenna)
    Selectivity 40dB
    Signal-to-Noise Ratio 50dB
    Antenna Built-in ferrite loopstick antenna

    Versions/Power requirements
    120V AC 60Hz
    220V AC 50Hz
    240V AC 50Hz
    120, 220, 240V AC 50/60Hz (switchable)

    Power Consumption:           18.2 watts max.

  • Net weight (2.2 lb = 1 kg)
  • 7.5 kg / 16 lb 8.3 oz (16.52 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's manual RT-925)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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