Philips RK 25
Data
General
- Manufacturer: Philips
- Model: RK 25 (other name for the EL 3553)
- Type: Fully transistorized four-track mono tape recorder with 2 tape speeds.
- Years of manufacture: 1965 - 1966
- Manufactured in: Germany
- Color: 2-tone grey
- Case: Polystyrene case
- Remote control: Yes, EL-3984
- Power consumption: approx. 40 watts
- Dimensions (WxHxD): 395 x 285 x 135 mm
- Weight: approx. 7 kg
- New price approx:
Connections
- Number of outputs: 4
- Loudspeaker: 2 built-in
- Outdoor speakers: 2 x 5 W
- Line-out stereo: 2 x 1 V
- Headphones
- Number of inputs: 3
- Microphones: 0.5 mV, 5 kOhm
- Record player: 120 mV, 1 MOhm
- Radio: 2 mV, 20 kOhm
Technical Data
- Max. coil diameter: 18 cm
- Drive: 1 asynchronous motor
- Heads: 2
- Tracks: 4
- Tape speeds: 4.75 cm/s, 9.5 cm/s
- Slip:
- Synchronous fluctuations: less than 0.3 %
- Pitch fluctuations:
- Frequency response:
- 4.75 cm/s: 60 - 10000
- 9.5 cm/s: 60 - 15000 Hz
- Signal-to-noise ratio: > 50 dB
- External signal-to-noise ratio:
- Distortion factor:
- Equalization:
- Crosstalk attenuation:
- Cancellation attenuation:
- Premagnetization and extinction frequency:
- Output power 2 x 3 W (built-in speakers).
- Output power 2 x 5 W (external speakers)
Special Features
- Duoplay
- Multiplay
- Tone control
- Automatic limit stop
- Illuminated tape counter
- Separately adjustable recording levels for microphone and radio
- Counter with reset button
- Other models in the same series:
Pictures
- Image: Philips RK-25
- Add-on amplifier EL-3787 for duoplay, multiplay and stereo playback.
Reviews
Links
- External link "Hifi Archive" for Service Manual Philips RK-25: [[1]]