AM/FM Stereo Tuner RT-426

Rotel, The, Co., Ltd.; Tokyo

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  • Year
  • 1978
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 307696

 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) / 120 or 220 or 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: AM/FM Stereo Tuner RT-426 - Rotel, The, Co., Ltd.; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 144 x 286 mm / 16.9 x 5.7 x 11.3 inch
  • Notes

  • A stereo hi-fi tuner covering MW and FM with NFB Phase Lock Loop Multiplex. With a  Signal Strength meter, FM Stereo indicator, rotary Function switch (AM, FM, FM Auto), push button switches for Hi-Blend and Muting, an adjustable AM ferrite bar aerial on the back, terminals for AM and FM antennae and RCA phono sockets for Line Output.

    Specificaton  
    FM Tuner Section  
    Usable Sensitivity  
     Mono
     Stereo    		 10.3dBf (1.8µV/300Ω)
    18.2dBf (4.9µV/300Ω)
    50dB Quieting Sensitivity  
     Mono
     Stereo    		 14.8dBf (3.0µV/300Ω)
    37.6dBf (42µV/300Ω)
    Signal-to-Noise Ratio (at 65dBf)  
     Mono
     Stereo    		 75dB
    66dB
    Distortion (at 65 dBf)  
     100Hz
     1kHz
     6kHz    		 0.15%(mono), 0.3%(Stereo)
    0.2%(mono), 0.3%(Stereo)
    0.3%(mono), 0.4%(Stereo)
    Frequency Response 30Hz - 15,000Hz +0.2dB,-1dB
    Capture Ratio 1.5dB
    Alternate Channel Selectivity 65dB
    Spurious Response Ratio 78dB
    Image Response Ratio 55dB
    IF Response Ratio 80dB
    AM Suppression Ratio 50dB
    Muting Threshold 14dBf
    Stereo Separation 32dB (30Hz - 15kHz)
    Antenna Input 300Ω balanced, 75Ω unbalanced
    AM Tuner Section  
    Sensitivity 220µV/m (IHF, Ferrite antenna)
    11µV (IHF, ext. antenna)
    Selectivity 25dB
    Signal-to-Noise Ratio 50dB
    Image Response Ratio  45dB
    IF Response Ratio 45dB
    Antenna Built-in ferrite loopstick antenna

    Versions/Power Requirements
    120 V AC 60Hz
    220 V AC 50Hz
    240 V AC 50Hz
    120/220/240 V AC 50/60Hz Switchable

  • Net weight (2.2 lb = 1 kg)
  • 5.7 kg / 12 lb 8.9 oz (12.555 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual for the RT-426)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Technical Manual for the RT-426 dated Nov 78)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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