Stereophonic Tuner Model 150

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1976–1978
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 109064

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereophonic Tuner Model 150 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 15.375 x 5.75 x 11.875 inch / 391 x 146 x 302 mm
  • Notes

  • A high-end hi-fi AM/FM tuner with analogue dial housed in a wood effect metal case (wooden outer cabinet optional). 18-Pole Linear Phase IF Filter, PLL FM Multiplex Demodulator, built-in 3-inch oscilloscope display, 25µS FM Dolby de-emphasis. With AM ferrite rod antenna, terminals for AM and FM antennae, antenna attenuator switch (In,Out), RCA Phono sockets for Tuner Output with level adjusters, RCA phono sockets for Scope Inputs and FM Quadradial Output, adjusters for Muting Level, Scope Focus and Brightness and 2 AC outlets.

    Specification  
    FM Section  
    Quieting Slope 1.7µV for 30dB, 5µV for 57dB
    10µV for 62dB, 50µV for 70dB
    Ultimate Quieting 50µV for 70dB
    Selectivity Alternate channel > 85dB
    Capture Ratio > 1.5dB
    Stereo Separation 40dB at 1kHz, 27dB at 15kHz
    Total Harmonic Distortion Stereo: < 0.3%, Mono: < 0.2%
    Frequency Response 30Hz-15kHz +1dB
    Total Spurious Rejection > 100dB
    Image Rejection > 100dB
    AM Suppression > 60dB
    IF Rejection > 100dB
    Antenna Impedance 300Ω balanced, 75Ω unbalanced
    Quadradial Output 350mV, 15kΩ for ±75kHz Dev.
    AM Section  
    Sensitivity > 40µV
    Selectivity Adjacent channel, 1000kHz > 30dB
    Bandwidth (-6dB), 7kHz
    Image Rejection, 1400kHz > 70dB


    Versions/Power requirements
    US & Canada /  120V AC 50/60Hz
    Europe  /  110/120/220/240V AC 50/60Hz switchable internally

    Designed in USA, Produced in Japan

  • Net weight (2.2 lb = 1 kg)
  • 26 lb 0 oz (26 lb) / 11.804 kg
  • Source of data
  • -- Collector info (Sammler)
  • Mentioned in
  • -- Original prospect or advert (1976-77 Hauptkatalog & 1978 Marantz Stereo-Tuner Stereo-Verstärker catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual Marantz Model 150)
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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