Stereo Cassette Tape Deck DR-171

Denon (Marke / brand)

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  • Year
  • 1984
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 143976

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Cassette-Recorder or -Player
  • Power type and voltage
  • Alternating Current supply (AC) / 120 or 220 or 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Cassette Tape Deck DR-171 - Denon Marke / brand
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 434 x 115 x 283 mm / 17.1 x 4.5 x 11.1 inch
  • Notes

  • A stereo cassette deck with Dolby B and C. Fitted Rec/Play connection leads with RCA connectors. Two input jacks for microphone, output jack for headphones. Silver or black cabinet.

    Specification
    Heads:                        Recording and playback head (Hard permalloy)                    
                                       Erase head (Double gap ferrite)
    Motor:                         DC servo motor
    Tape Speed:               4.8 cm/sec
    Signal to Noise Ratio: (for T.H.D. 3% level) a metal tape is used
                                       more than 60 dB (Dolby NR switch turned off)
                                       more than 68 dB (Dolby B)
                                       more than 74 dB (Dolby C)
    Total Frequency Characteristics:
                                      20-18,000 Hz (-20 dB), 30-17,000 (±3 dB) for Metal Tape
                                      20-17,000 Hz (-20 dB), 30-16,000 (±3 dB) for CrO2 Tape
                                      20-16,000 Hz (-20 dB), 30-15,000 (±3 dB) for Normal Tape        
    Channel Separation:  Over 50 dB (1 kHz)
    Crosstalk:                   Over 65 dB (1 kHz)
    Wow and Flutter:        0.05% wrms.

    Input:
     Microphone:              0.25 mV at max. input volume
                                       Unbalanced input impedance: 4.7 k ohm
     Line:                          60 mV at max. input volume
                                       Unbalanced input impedance: 30 k ohm
               
    Output:
     Line:                          775 mV at 47 k ohm loading, output volume at Maximum  
     Headphone:              1.2 mW (loading impedance: 8 ohm — 2 k ohm
                                       output volume at Maximum)        

    Versions/Power Requirements:
    America, Canada         / 120V AC 60 Hz
    Hong Kong, Singapore / 120/220/240V AC 50/60 Hz with voltage adjuster
    Europe                         / 220 V AC 50 Hz
    UK, Australia, NZ          / 220/240 V AC 50 Hz

    Stereo-Cassettendeck mit Dolby C; automatische Umschaltung zwischen Mikrofon- und LINE-Eingang. 20 - 18000 Hz (Metal). Aufnahme und Wiedergabe auch mit Schaltuhr möglich.
    Gehäuseausführung Silber oder Schwarz.

  • Net weight (2.2 lb = 1 kg)
  • 4.6 kg / 10 lb 2.1 oz (10.132 lb)
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual model DR-171 solid state cassette tape deck)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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