ASC AS 4502

Data[edit]

General

Connections

Number of inputs:
- Radio (DIN): 1 mV / kOhm / 4.7 kOhm.
- Reserve (DIN): 100 mV / 1 MOhm
- 2x microphone: 0.1 mV / 1.2 kOhm
- Slide control:
- Projector:
Number of outputs:
- Radio (DIN): 1.3 V / 500 Ohm
- Monitor (DIN): 1.3 V / 500 Ohm
- Headphones: 5 - 2'000 Ohm

Technical data

Max. coil diameter: 18 cm
Drive: 3 motors
Heads: 3
Tracks: 2
Tape speeds: 19 / 9.5 / 4.75 cm/s
Slip:
Speed variations:
Pitch fluctuations:
- 4.75 cm/s: < 0.2%
- 9.5 cm/s: < 0.12%
- 19 cm/s: < 0.06%
Overall frequency response:
- 4.75 cm/s: 20 - 12'000 Hz
- 9.5 cm/s: 20 - 16'000 Hz
- 19 cm/s: 20 - 23'000 Hz
Quiescent noise voltage range:
- 4.75 cm/s: 52 dB
- 9.5 cm/s: 61 dB
- 19 cm/s: 62 dB
Extraneous voltage spacing:
- 4.75 cm/s: 46 dB
- 9.5 cm/s: 52 dB

19 cm/s: 52 dB

Distortion factor:
- 9.5 cm/s: 0.8 %
- 19 cm/s: 0.6
Equalization:
- 4.75 cm/s: 120µs + 3180µs
- 9.5 cm/s: 90µs + 3180µs
- 19 cm/s: 50µs + 3180µs
Crosstalk attenuation: 50 dB (stereo, 1 kHz)
- Mono at 1,000 Hz: - 70 dB; between 500 Hz and 6,300 Hz: - 55 dB
- Stereo at 1,000 Hz: - 48 dB; between 500 Hz and 6,300 Hz: - 43 dB
Cancellation attenuation: > 70 dB at all speeds
Premagnetization and cancellation frequency: 130 kHz

Special equipment