FM Tuner MR 78

McIntosh Audio Company; Binghamton, NY

Data
Forum
Pictures
Collections

  • Year
  • 1972–1982
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 133292

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 10700 kHz
  • Wave bands
  • FM Broadcast Band Only
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 120 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: FM Tuner MR 78 - McIntosh Audio Company;
  • Shape
  • Chassis only or for «building in»
  • Dimensions (WHD)
  • 406 x 138 x 330 mm / 16 x 5.4 x 13 inch
  • Notes

  • A hi-fi FM stereo tuner with an analogue dial. Optional wooden case. Meters for Multipath/Signal Strength and Tuning, switches for Selectivity (Normal, Narrow, Super Narrow), Filter, Muting and Mode (Stereo Only, Mono, Stereo Auto). 75 and 300 ohms antenna input, RCA fixed and controlled AF out.

    Specification  
    SENSITIVITY 2µV for better than 35dB quieting
    2.5µV IHF usable sensitivity Max.
    1.9µV typical
    SELECTIVITY IHF  
     ADJACENT CHANNEL
      Normal
      Narrow
      Super-Narrow    		  
    7dB
    22dB
    55dB 
     ALTERNATE CHANNEL
      Normal
      Narrow
      Super-Narrow    		  
    55dB
    >90dB
    >>90dB
    SIGNAL TO NOISE RATIO > 75dB below 100% modulation
    HARMONIC DISTORTION < 0.2% mono or stereo
    at 100% modulation 20Hz-18kHz
    Typically < 0.05% at lkHz
    FREQUENCY RESPONSE ±1dB 20Hz-18kHz with standard 75µS de-emphasis
    CAPTURE RATIO > 2.5dB IHF
    SPURIOUS REJECTION > 100dB IHF
    IMAGE REJECTION > 100dB 88-108MHz IHF
    STEREO SEPARATION > 40dB at 1kHz
    SCA FILTER 50dB down from 67kHz-74kHz;
    275dB per octave slope

    Power Requirements: 120V AC 50/60Hz
    Power consumption: 35 Watts

  • Net weight (2.2 lb = 1 kg)
  • 12.3 kg / 27 lb 1.5 oz (27.093 lb)
  • Price in first year of sale
  • 1,699.00 $
  • Source of data
  • -- Original-techn. papers.
  • Mentioned in
  • -- Original prospect or advert (1982 McIntosh catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service manual McIntosh MR78)
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

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

 Forum