A&R Stereo FM Tuner T21

A&R Cambridge Ltd. (ARCAM); Waterbeach, Cambridge

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  • Year
  • 1979
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 140703

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 10700 kHz
  • Wave bands
  • FM Broadcast Band Only
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 100-120 or 200-250 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: A&R Stereo FM Tuner T21 - A&R Cambridge Ltd. ARCAM;
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 450 x 60 x 240 mm / 17.7 x 2.4 x 9.4 inch
  • Notes

  • A stereo hi-fi analogue FM tuner housed in a wooden cabinet. With 5 radio station presets, AFC and Mono press buttons, signal strength meter, tuning meter and stereo indicator. 5 pin DIN socket for audio output, rotary output level control and 75 ohm FM aerial socket.

    Specification
    Tuning Range:              87.5 to 108.5MHz
    Sensitivity (I.H.F.):        Typically 2.0µV
    Capture Ratio:              1.5dB
    Alt. Channel Selectivity: Better than 60dB
    Frequency Response:    20Hz - 12kHz ± 0.5dB, typically —3dB at 15kHz
    Channel Balance:          Within ± 1dB
    Ultimate S/N Ratio (CCIR/ARM):
                     MONO        Better than 70dB
                     STEREO     Better than 68dB
    Distortion (T.H.D.), 1kHz:
                     MONO        Better than 0.15%
                     STEREO     Better than 0.25%
    Channel Separation:      Better than 35dB
    Output Level:                Continuously variable; 8mV - 800mV at full deviation
    Output Impedance:        Less than 1k ohm

    Power Requirements
    200 - 250 Volts AC only, 6VA (100 - 120 Volt AC model to special order)

  • Net weight (2.2 lb = 1 kg)
  • 3.5 kg / 7 lb 11.3 oz (7.709 lb)
  • Source of data
  • -- Collector info (Sammler)
  • Mentioned in
  • -- Original prospect or advert (A&R The T21 Stereo FM Tuner Brochure)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (A&R The T21 FM Tuner Owner's Handbook Issue 1 dated 1 Sept 1979)

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