AM/ FM Stereo Tuner ST400 (ST-400)

Marantz (Sound United LLC); Vista, CA

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  • Year
  • 1979
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 222395

 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) / 110 or 120 or 220 or 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AM/ FM Stereo Tuner ST400 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 416 x 146 x 243 mm / 16.4 x 5.7 x 9.6 inch
  • Notes

  • An AM/FM (MW, FM) stereo hi-fi tuner. Some examples have a rack front. On the front, push buttons for Power, MW, FM and FM Muting/Mode/Stereo/Mono and Servo Lock on/off, a Gyro-Touch tuning wheel, two VU meters for FM Tuning and Signal Strength and a 5-digit digital frequency readout as well as an analogue scale. On the rear, an adjustable AM antenna, connections for AM and FM aerials and a line output cable for connection to an amplifier. The 120V US model has a 25µS-75µS FM De-Emphasis switch and an unswitched AC outlet.

    Specification
    FM Tuning Range .................:  87.5 - 108 MHz
    MW Tuning Range ................:  525 - 1605 kHz
    Signal to Noise Ratio ............:  65dB/63dB (FM Mono/Stereo), 55dB (MW)
    Selectivity .............................:  65dB (FM), 46dB (MW)
    Sensitivity .............................:  0.9 µV (Mono), 23µV (Stereo), 25µV (MW)

    Versions/Power Requirements
    120 V AC 60Hz
    220/240 V AC 50Hz with 2 position voltage selector
    110/220 V AC 50Hz with 2 position voltage selector

    Similar to the Marantz ST400L MW/LW/FM Stereo Tuner which additionally has LW. Also similar to the Marantz ST300 AM/ FM Stereo Tuner which does not have the digital readout display and the Servo Lock switch.

    Designed in USA Made in Japan

  • Net weight (2.2 lb = 1 kg)
  • 4.5 kg / 9 lb 14.6 oz (9.912 lb)
  • Mentioned in
  • - - Manufacturers Literature (1980 Marantz Hi-Fi catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual for the ST-300 ST300L ST400 ST400L Stereophonic Tuners)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Schematic dated 1979-3)
  • Author
  • Model page created by Jia Lun LU. See "Data change" for further contributors.

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The model AM/ FM Stereo Tuner is part of the collections of the following members.

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