Philips RK 25 specifications

Category : Tape machines

Brand : Philips

General

Connections

Tech nical data

Special equipment

• Manufacturer: Philips
• Model: RK 25 (other name for the EL 3553)
• Type: Fully transistor four-track mono tape recorder with 2 tape speeds
• Years of construction: 1965 - 1966
• Manufactured in: Germany
• Color: 2-colored gray
• Housing: Polystyrene case
• Remote control: Yes, el- 3984
• Power consumption: approx. 40 watts
• Dimensions (WxHxD): 395 x 285 x 135 mm
• Weight: approx. 7 kg
• Factory price approx.:

• Number of outputs: 4
  • Speakers: 2 built-in
  • Outdoor speakers: 2 x 5 W
  • Line-out Stereo: 2 x 1 V
  • Headphones
• Number of inputs: 3
  • Microphones: 0.5mV, 5 kOhm
  • Turntable: 120 mV, 1 mOhm
  • Radio: 2 mV, 20 kOhm

Speaker: 2 built-in
• Outdoor Speakers: 2 x 5 W
• Line-out Stereo: 2 x 1 V
• Headphones

• Microphones: 0.5mV, 5 kOhm
• Turntable: 120 mV, 1 mOhm
• Radio: 2 mV, 20 kOhm

• Max. Coil diameter: 18 cm
• Drive: 1 asynchronous motor
• Heads: 2
• Tracks: 4
• Tape speeds: 4.75 cm/s, 9.5 cm/s
• Slip:
• Synchronisation fluctuations: less than 0.3 %
• Pitch fluctuations:
• Frequency response:
  • 4.75 cm/s: 60 - 10000
  • 9.5cm/s: 60 - 15000 Hz
• Signal-to-noise ratio: > 50 dB
• External voltage ratio:
• Total harmonic distortion:
• Equalization:
• Crosstalk attenuation:
• Extinguishing attenuation:
• Pre-magnetization and extinguishing frequency:
• Output power 2 x 3 W (built-in speakers)
• Output power 2 x 5 W (external speakers)

• 4.75 cm/s: 60 - 10000
• 9.5 cm/s: 60 - 15000 Hz

• Duoplay
• Multiplay
• Tone control
• Automatic end shutdown
• Illuminated tape counter
• Separately adjustable recording levels for microphone and radio
• Counter with reset button

• Other models of the same series:
  • Philips RK -12
    • RK 12
  • Philips RK-25
    • RK 25
  • Philips RK-37
    • RK 37
  • Philips RK-65
    • RK 65
    < /li>
  • Philips RK-66
    • RK 66

• RK 12

• RK 66

• RK 12

• RK 37

• RK 65

• RK 66

• Picture: Philips RK-25

• Additional amplifier EL-3787 for Duoplay, Multiplay and stereo playback

• External link "Hifi Archive" for Service Manual Philips RK-25: [[1]]

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