Beocord 1800

Data

General

• Manufacturer: Bang & Olufsen
• Model: Beocord 1800
• Type: Reel-to-reel tape
• Years of manufacture: 1969 - 1973
• Made in: Denmark
• Color: Teak veneer / black
• Remote control:
• Power consumption: max. 50 W
• Dimensions: 450 x 225 x 358 mm (WxHxD) incl. dust cover
• Weight: 16,2 kg
• Original price approx.: 1'675 DM

Connections

• Number of outputs: 3
  • Radio (1.25 V / 7.5 kΩ)
  • Line (1.25 V / 7.5 kΩ)
  • Headphones: (0.8 V / 47 kΩ or 1.8 V at 470 Ω, volume adjustable).
• Number of inputs: 4
  • Microphone (50-200 Ω sym., 35 μV / 1,000 Hz).
  • Radio low impedance: (47 kΩ 2.5 mV / 1,000 Hz).
  • Radio high impedance: (100 kΩ 2.5 mV / 1,000 Hz).
  • Phono low impedance: (47 kΩ 2.5 mV / 1,000 Hz)
  • Phono high impedance: (100 kΩ 2.5 mV / 1,000 Hz)

Line (47 kΩ 250 mV / 1,000 Hz)

Technical Data

• Coil diameter: max. 18 cm
• Drive: 1 motor
• Heads:
  • Type 4132 (half gauge): 4
  • Type 4138 (quarter gauge device): 3
• Tracks:
  • Type 4132 (half-gauge unit): 2, reproduction also for quarter gauge
  • Type 4138 (quarter-track unit): 4
• Tape speeds: 4.75 - 9.5 - 19 cm/s, max. deviation 1%.
• Slip:
• Synchronous fluctuations:
  • at 4.75 cm/s: < 0.18% (effective), < 0.5% (peak).
  • at 9.5 cm/s: < 0.11% (effective), < 0.3% (peak)
  • at 19 cm/s: < 0.07% (effective), < 0.2% (peak).
• Pitch fluctuations:
• Overall frequency response:
  • at 4.75 cm/s: 30 - 7,500 Hz (±2 dB, 40 - 6,000 Hz).
  • at 9.5 cm/s: 20 - 15,000 Hz (±2 dB, 30 - 13,000 Hz)
  • at 19 cm/s: 20 - 20,000 Hz (±2 dB, 30 - 18,000 Hz)

Signal-to-noise ratio:

• • Type 4132 (half-track unit): > 60 dB (DIN 45 405), > 65 dB (IEC 123-A).
  • Type 4138 (quarter-track device): > 57 dB (DIN 45 405), > 62 dB (IEC 123-A)
• External voltage spacing:
• Distortion factor:
• Equalization: DIN 45 513, 1966-67, NAB 1965.
• Distortion: < 3% über Band bei VU Null
• Übersprechdämpfung Mono: >60 dB /1,000 Hz, > 50 dB / 10,000 Hz
• Stereo crosstalk attenuation: > 55 dB / 1,000 Hz, > 45 dB / 10,000 Hz
• Cancellation attenuation: 70 dB with 100kHz push-pull oscillator
• Premagnetization and cancellation frequency: 100 kHz

Special Features

• Trick options: Sound on Sound, Synchro Playback.
• Amplifier: Amplifier equipment can be used without turning on the player.
• Mixer with slider
• Hyperbolic ground recording and playback heads

Remarks

• Other models in the same series:
• Bang & Olufsen Beocord 1200
• Bang & Olufsen Beocord 1600
• Beocord 1800
• Bang & Olufsen Beocord 2000 De Luxe
• Beocord 2400

Pictures

• Excerpt from advertising: Beocord 1800, Beocord 2400

Links

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