AM/FM Stereo Tuner RT-870

Rotel, The, Co., Ltd.; Tokyo

Data
Forum
Pictures
Collections

  • Year
  • 1989 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 307714

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • 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: AM/FM Stereo Tuner RT-870 - Rotel, The, Co., Ltd.; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 444 x 66 x 327 mm / 17.5 x 2.6 x 12.9 inch
  • Notes

  • An AM/FM stereo quartz synthesizer hi-fi tuner covering MW and FM with a digital frequency display. With push buttons for Band (AM, FM), AM Wide, Hi-Blend, Mute Off/Mono, RF Att, FM Wide, Auto Tuning, Memory, Tuning Up and Down, 5 LED signal Strength indicators, Stereo indicator, 9 Station buttons (marked 1 - 8 and +8)  to tune into 16 preset AM or FM radio stations, a clip-on AM Loop Aerial on the back, connections for AM and FM antennae and RCA phono Line Output sockets.

    Specification  
    FM Tuner Section  
    Usable Sensitivity (mono) 10.8dBf / 0.95µV (75Ω)
    50dB Quieting Sensitivity Mono   14.8dBf / 1.5µV (75Ω)
    Stereo  37.2dBf / 20µV (75Ω)
    Signal-to-Noise Ratio (at 65dBf) Mono    80dB
    Stereo  75dB
    Harmonic Distortion (at 65dBf) 1 kHz 0.07% (mono), 0.25% (stereo)
    Frequency Response 30-15,000Hz ,+0.5dB, -0.5dB
    Capture Ratio 1.0dB
    Alternate Channel Selectivity
     (±400kHz) Wide/Narrow    		 60dB/80dB
    Adjacent Channel Selectivity 15dB (Narrow)
    Spurious Response Rejection 100dB
    Image Response Ratio 70dB
    IF Response Ratio 95dB
    AM Suppression Ratio 58dB
    Stereo Separation 100Hz/1kHz/10kHz,
    43dB/48dB/38dB)
    Antenna 75Ω unbalanced, 300Ω balanced
    AM Tuner Section  
    Sensitivity 350µV/m
    Selectivity Wide/Narrow 27dB / 42dB
    Signal-to-Noise Ratio 52dB
    Image Response Ratio 40dB
    IF Response Ratio 40dB
    Antenna Loop antenna

    Versions/Power Requirements
    120 V AC 60Hz
    220 V AC 50Hz
    240 V AC 50Hz
    120/220/240 V AC 50/60Hz (not available in UK, Canada and Scandinavia)

    Power consumption: 10 watts

    Similar to the Rotel RT-870L LW/MW/FM which additionally has LW.

  • Net weight (2.2 lb = 1 kg)
  • 3.9 kg / 8 lb 9.4 oz (8.59 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual for the RT-870 & RT-870L)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Technical Manual for the RT-870 & RT-870L)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum