Stereo Tuner TX-6500II (2)

Pioneer Corporation; Tokyo

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  • Year
  • 1977
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 151000

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Stereo Tuner TX-6500II - Pioneer Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 380 x 139 x 322 mm / 15 x 5.5 x 12.7 inch
  • Notes

  • A hi-fi AM/FM stereo tuner with an analogue dial housed in a metal case, a wooden cabinet is optional. With an FM/AM analogue tuning meter, Stereo Indicator lamp, Selector switch (FM Mono, FM Auto, AM) and Mute On/Off switch. With terminals for AM and FM antennae, built on adjustable AM bar antenna, RCA phono Line Output sockets.

    Specification  
    Semiconductors FET 1, ICs 3, Transistors 7, Diodes 9
    FM Section  
    Circuitry 1 FET, 1-stage RF Amplifier 3-gang variable
    capacitor, 5-stage limiter, PLL MPX
    Usable Sensitivity Mono: 10.7dBf (1.9µV)
    50dB Quieting Sensitivity Mono: 14dBf (2.8µV), Stereo: 38dBf (44µV)
    S/N Ratio at 65dBf Mono: 75dB, Stereo: 68dB
    Distortion at 65dBf:  
      100Hz
      1kHz
      10kHz    		 Mono:  0.15%, Stereo: 0.3%
    Mono:  0.15%, Stereo: 0.3%
    Mono:  0.2%,  Stereo: 0.6%
    Frequency Response 30Hz-10kHz +0.2dB,-0.5dB
    20Hz-15kHz +0.2dB,-1.0dB
    Capture Ratio 1.0dB
    Alternate Channel Selectivity 60dB
    Spurious Response Ratio 75dB
    Image Response Ratio 60dB
    IF Response Ratio 90dB
    AM Suppression Ratio 50dB
    Muting Threshold 10dBf (1.7µV)
    Stereo Separation 40dB  (1 kHz), 30dB (30Hz-15kHz)
    Antenna Input 300Ω balanced
    75Ω unbalanced
    AM Section  
    Circuitry 1-stage RF amplifier, 2-gang variable capacitor
    Sensitivity: (IHF, Ferrite antenna) 300µV/m
    (IHF, Ext. antenna)    15µV
    Selectivity 35dB
    S/N Ratio 50dB
    Image Response Ratio 40dB
    IF Response Ratio 70dB
    Antenna Built-in ferrite loopstick antenna
    Audio Section  
    Output Level/Impedance: FM:  650mV/4.6kΩ (100% MOD)
    AM:  150mV/5.4kΩ (30% MOD)

    Versions/Power requirements

    KC 120V AC 60Hz with de-emphasis select switch Canada
    KU 120V AC 60Hz with de-emphasis select switch U.S.
    HG     220 and 240V AC 50/60Hz  (switchable) Scandinavia
    S 110,120,220 & 240V AC 50/60Hz (switchable)
    with de-emphasis select switch    		 General Export

    Power consumption: 14 W

  • Net weight (2.2 lb = 1 kg)
  • 5.6 kg / 12 lb 5.4 oz (12.335 lb)
  • Source of data
  • -- Collector info (Sammler)
  • Mentioned in
  • -- Original prospect or advert (1977 Pioneer Stereo Components catalogue)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating Instructions TX-6500II)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Service manual TX-6500 II dated Nov 1976)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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