Nasacom Mark II 46 channel citizen band transceiver

Unknown - CUSTOM BUILT: Japan

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  • Year
  • 1974 ?
  • Category
  • Citizen Band Equipment
  • Radiomuseum.org ID
  • 270653

 Technical Specifications

  • Number of Tubes
  • 11
  • Main principle
  • Transceiver
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Line / Batteries (any type) / 220 AC / 12 DC Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch
  • Power out
  • 3 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Nasacom Mark II 46 channel citizen band transceiver - Unknown - CUSTOM BUILT: Japan
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 300 x 125 x 210 mm / 11.8 x 4.9 x 8.3 inch
  • Notes

  • 46 channeIs crysta| controlled (14 crystals)

    TRANSMITTER

    Plate Power input to final : 5 watts max - Modulation AM up to 100% capability

    Harmonic suppression better than 55 db down - Carrier Deviation better than .0052 ;

    Antenna Match 50-75 ohms

    RECEIVER

    Sensitivity .8 uV for 10 db S + N to N ratio - Selectivity 6 Khz bandwidth -6h db

    intermediate frequency 1st IF-11.27M5 hz; 2nd lF-455K hz - lmage Rejection -75db

    Audio output 4 watts - External speaker impedance 4-8 ohms

    COMMON

    Power Supply 220 volts 50/60 cycles AC; 12 Volts DC

    Power Consumption AC -80 watts - DC -3 l/2 amps rec.; 4 amps trans.

    TUBES

    v1    6BL8    (RF ampl 1st Mixer) - v2    6BL8    (2nd Mixer/2nd Osc)

    v3    6BA6    lF Amp (455 Khz) - v4    6BA6     lF Amp (455 Khz)

    v5   12AX7   1st Audio/Modulator/Mic preamp

    v6    6BQ5    Audio Output/Modulator - v7    6GH8    Local Osc.

    v8    6GH8   Converter 1st Osc. - v9    6BA6    Buffer Amp

    v10  6BQ5    RF Power Amp - v11  12AT7  Buffer Synthesizer

  • Net weight (2.2 lb = 1 kg)
  • 17 lb 0 oz (17 lb) / 7.718 kg
  • Author
  • Model page created by Edoardo Sigismondo. See "Data change" for further contributors.

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