FM/AM Stereophonic Tuner Model 105

Marantz (Sound United LLC); Vista, CA

  • Year
  • 1972
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 161954

Click on the schematic thumbnail to request the schematic as a free document.

 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) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: FM/AM Stereophonic Tuner Model 105 - Marantz Sound United LLC;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 14.17 x 4.72 x 11.03 inch / 360 x 120 x 280 mm
  • Notes
  • A hi-fi AM/FM stereo tuner with an analogue dial housed in a metal case (wooden outer case optional). With Gyro-touch tuning, Signal Strength meter, Stereo indicator, push button switches for FM, AM, Mono and Muting. On the back, an AM ferrite rod aerial, terminals for AM and FM aerials, RCA phono Line Output sockets and an unswitched AC outlet (200 watts max.).

    Specification  
    FM Section  
    Tuning Frequency Range 88-108MHz
    IHFM Usable Sensitivity 3.0µV
    IHFM Selectivity 50dB
    Capture Ratio 2.5dB
    Image Rejection Ratio at 106MHz 50dB
    Signal to Noise Ratio 65dB (Mono), 55dB (Stereo)
    Total Harmonic Distortion 0.2% (Mono), 0.5% (Stereo)
    Frequency Response 50Hz-15kHz, ±1dB
    Stereo Separation at 1kHz 40dB
    AM Section  
    Tuning Frequency Range 540-1600kHz
    Usable Sensitivity 20µV
    Selectivity 20dB
    Image Rejection Ratio at 1400kHz 40dB
    Signal to Noise Ratio 43dB
    Frequency Response, -3dB down 50Hz-4kHz
    Total Harmonic Distortion 1%

    Versions/Power requirements
    120V AC 50/60Hz
    110/120/220/240V AC 50/60Hz switchable internally

    Power consumption: 15 Watts

    Designed in USA, Produced in Japan

  • Net weight (2.2 lb = 1 kg)
  • 13.2 lb (13 lb 3.2 oz) / 5.993 kg
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual Model 105)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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