Precision audio component / FM Stereo Tuner TU-850

Denon (Marke / brand)

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  • Year
  • 1978/1979
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 208138

 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; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Precision audio component / FM Stereo Tuner TU-850 - Denon Marke / brand
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 434 x 164 x 400 mm / 17.1 x 6.5 x 15.7 inch
  • Notes

  • A hi-fi FM stereo tuner with a revolving analogue dial housed in a large steel case painted in brown crackle finish with a thick aluminum front panel. With a 5 gang tuning capacitor and 5 filters. With a Tuning meter, left and right Signal/Multipath/Power Output meters (power output of the connected amplifier), rotary Tuning and Output Level controls, switches for  Hi-Blend (on/off), Muting (on/off), IF Bandwidth (Wide/Narrow), indicators for FM stereo, Wide and Narrow, rotary switches for Meter Selector (Signal and Multipath/Level/Power Out), External Attenuator (10dB/20dB/30dB), and Function (FM Mono/FM Auto/Rec Level check). On the back, a 75 ohm F type FM antenna connector, terminals for FM antennae, RCA phono sockets for Fixed and Variable Line output and for Multipath output and terminals for connection to the amplifier (input less than 30 V RMS).

    Specification  
    Circuit System Superheterodyne
    Tuning Range 87.4-108MHz
    Antenna Impedance 300Ω and 75Ω
    Usable Sensitivity 1.7µV (9.8dBf)
    Sensitivity at S/N 50dB mono 3.3µV (15.6dBf)
    stereo 30µV (34.7dBf)
    Effective Selectivity wide 35dB (400kHz)
    narrow 65dB (300kHz)
    Image Rejection 120dB
    IF Rejection 110dB
    Spurious Rejection 110dB
    AM Suppression 65dB
    Capture Ratio wide 0.8dB, narrow 1.5dB
    Frequency Response 20Hz-15kHz +0.2dB,-1.5dB
    S/N Ratio mono 84dB, stereo 82dB
    THD mono wide 0.05%, narrow 0.1%
    stereo wide 0.06%, narrow 0.3%
    Stereo Separation wide 1kHz 55dB, 10kHz 45dB
    narrow 1kHz 50dB, 10kHz 40dB
    Carrier Leak
    (19kHz, 38kHz)    		 80dB
    Output Voltage/Impedance  
     Fixed Output
     Variable Output    		 1.3V/1.7kΩ (100% modulation)
    0 to 1.3V/1.7kΩ (100% modulation)

    Versions/Power requirements
    USA, Canada / 120V AC 60Hz
    UK / 240V AC 50Hz
    Europe / 220V AC 50Hz

    Power Consumption: 15 watts

  • Net weight (2.2 lb = 1 kg)
  • 11 kg / 24 lb 3.7 oz (24.229 lb)
  • Price in first year of sale
  • 480.00 $
  • Mentioned in
  • -- Original prospect or advert (1978/79 Denon hifi-programm catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual TU-850 FM Stereo Tuner)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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