Philips N4450

Maintenance repair

The Netherlands 1971

2 stereo tracks
6 heads
Maximum coil diameter 26.5 cm
Speed ​​4,75 - 9,5 - 19 cm / s
Speed ​​accuracy 0.35% - 0.2% - 0.15%
Rewind time 250 s for 1080 m
Rewind time 150 s for 540 m
Mic input sensitivity 0.15 mV 2 kOhms
Tape input sensitivity 2 mV 20 kOhms
Tape input sensitivity 100 mV 1 MOhms
Tuner input sensitivity 100 mV 100 kOhms
Phono input sensitivity 1.5 mV 47 kOhms
Phono input sensitivity 100 mV
Aux input sensitivity 2 mV 20 kOhms
Aux input sensitivity 100 mV 1 MOhms
Uscita tape 1 V 50 kOhms
Uscita monitor 1 V 50 kOhms
Headphone output 3 V 400 - 600 Ohms
Power 2 x 20 W 8 Ohms
Frequency Response 60Hz - 8kHz at 4.75cm / s (Type 702)
Frequency Response 40Hz - 15kHz at 9.5cm / s (Type 723)
Frequency response 40Hz - 20kHz at 19cm / s
Filtro rumble -10 dB a 30 Hz
Filtro scratch -15 dB a 15 kHz
100 kHz cancellation frequency