AM/FM Stereo Multiplex Receiver KW-70

Kenwood, Trio-Kenwood Inc.; Komagane

  • Year
  • 1963 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 327510
    • alternative name: Trio Corp.
    • Brand: Jennen

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

 Technical Specifications

  • Number of Tubes
  • 23
  • Main principle
  • Superhet with RF-stage
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 50 W (65 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AM/FM Stereo Multiplex Receiver KW-70 - Kenwood, Trio-Kenwood Inc.;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 17.75 x 5.33 x 14 inch / 451 x 135 x 356 mm
  • Notes
  • A hi-fi valve receiver with an AM/FM stereo tuner with an analogue dial and amplifier with continuous power output of 25 watts per channel. With Stereo and Tuning magic eye indicators, rotary Tuning, Volume, Bass, Treble, Balance and Blend (Stereo-Mono), controls, on/off switches for Rumble Filter, Loudness, FM AFC, Noise Filter, Tape Monitor and Speakers, rotary switches for Power, Selector (AM, FM, FM Stereo, Phono, Tape, Aux) and Mode (Left speaker, Right speaker, Stereo, Reverse) and a jack for headphones. On the back, RCA phono sockets for input Tape Recorder Head, MM pickup, Crystal pickup and Aux, for input/output Tape Recorder, terminals for one pair of loudspeakers (4-16 ohms), terminals for AM and FM antennae, a rotary Dimension control (for stereo separation adjustment), a speaker Phase switch and a Hum Balance adjuster.

    Specification  
    Frequency Range
     FM
     AM
     
    88 — 108MHz
    535 — 1605kHz
    Sensitivity
     FM
     AM
     
    1.9µV/98MHz (Input required for S/N 20db)
    2.0µV/1000kHz (Input required for S/N 10db)
    Frequency Response
     FM
     FM stereo
     
    20-20,000kHz (< 1/2db)
    50-15,000kHz (< 1/2db)
    FM Stereo Separation > 38db (400kHz)
    FM Stereo Harmonic Distortion < 1% (400kHz)
    Inputs MAG 2.2mV; TAPE HEAD — 1.9mV (500kHz);
    XTAL 24mV; AUX — 140mV
    Output Power @ 1% THD 25 watts per channel continuous power
    32.5 watts per channel music power
    50 watts mono continuous power
    65 watts mono music power
    Equalizer RIAA (MAG) NARTB (TAPE)

    Power requirements: 117V AC 60Hz
    Power Consumption: 200 Watts

    See also Lafayette LR-800.

  • Net weight (2.2 lb = 1 kg)
  • 34 lb 0 oz (34 lb) / 15.436 kg
  • Price in first year of sale
  • 269.95 $
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating manual KW-70)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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