• Country
• Great Britain (UK)

• Manufacturer / Brand
• A&R Cambridge Ltd. (ARCAM); Waterbeach, Cambridge

• Year
• 1985 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 312742

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 110 or 120 or 220 or 240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 60 W (undistorted)

• Material
• Metal case

• from Radiomuseum.org
• Model: Integrated Stereo Amplifier Alpha - A&R Cambridge Ltd. ARCAM;

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 400 x 95 x 231 mm / 15.7 x 3.7 x 9.1 inch

• Notes

• A stereo hi-fi integrated amplifier with output power of 30 watts per channel into 8 ohms. Bass and Treble tone controls. RCA input sockets for Video, CD, Tuner and Disc (MM cartridge), RCA input/output sockets for tape recorder. 4mm switched and direct sockets for 1 pair of loudspeakers and a jack for headphones.

  Specifications
  Noise and sensitivities Ref. 30 watts into 8ohm at 1kHz, Noise figures are CCIR/ARM weighted)
  Output Power per channel
   Both channels driven into 8ohm      30W (20Hz-20kHz at 0.5% THD)
  Single channel at 1 kHz into 8ohm   40W typ.
                                     into 4ohm   47W typ.
  Loudspeaker impedance      4ohm or higher
  Harmonic distortion         0.02% typ. at 25W into 8ohm at 1 kHz           
  Frequency response
    Disc input                    typ ±0.6dB 60Hz-20kHz, -3dB at 20Hz
    Other inputs                 typ ±0.5dB 30Hz-20kHz, -1dB at 20Hz
  Crosstalk at lkHz            <-60dB
  Low freq. damping factor 200 typ.
  Inputs
  Disc (suitable for MM and "high-output" MC Cartridges)
  Sensitivity                     2.5mV
  Noise                           <-70dB
  Input impedance            47kohm in parallel with 100pF
  Switchable loading module (ULM/M) available - provides 30 kohm,
  8kohm, 200pF 320pF, 420pf and user programmable option.
  Tuner. tape and video
  Sensitivity                     200mv
  Noise                            <-90dB
  Input Impedance            25kohm
  CD
  Sensivity                       450mv
  Noise                           <-90dB
  Input impedance           10kohm
  Outputs
  Tape output
  Nominal output level      200mV
  Output impedance         2kohm
  Headphones (8ohm to 2kohm impedance)
  Max. output into 600ohms 10V rms
  Output impedance            330ohm
  Power supply
  240V nominal. May be dealer adjusted to 120V nominal. 220/110V model to special order.
  Power consumption 120VA.
  Spares kit
  Two loudspeaker fuses (2.0A fast blow)
  Two red 4mm Plugs
  Two black 4mm plugs

  This and later Alpha models serial numbers
  Alpha Serial numbers 1 - 5580
  Alpha Plus Serial numbers 5581 - 18799
  Alpha 2 Serial numbers 18800 - 39649
  Alpha 3 Serial numbers 39650 -

• Net weight (2.2 lb = 1 kg)
• 4 kg / 8 lb 13 oz (8.811 lb)

• Literature/Schematics (1)
• - - Manufacturers Literature (ARCAM Alpha Amplifier Service Manual All Models Issue 2 16/10/91)

• Literature/Schematics (2)
• - - Manufacturers Literature (ARCAM Alpha Integrated Stereo Amplifier Owner's Handbook)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 22 models, 22 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from A&R Cambridge Ltd. (ARCAM); Waterbeach, Cambridge