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LEAK POINT ONE

 

Stereo Pre-amplifier

 

 

 

Front panel  (from left to right) : input (tuner, tape, pick-up, extra, mic) – bass and treble controls – balance – volume. On the left lower side : function selector (reverse, stereo, L mono, R mono, mono P-U*). On the right lower side : rumble cut.

Pannello frontale (da sinistra a destra) : input (tuner, tape, tape head, pick-up, mic) – controlli bass e treble – balance – volume. Sul lato inferiore sinistro : function selector (reverse, stereo, L mono, R mono, mono P-U*). Sul lato inferiore destro: filtro rumble.

 

 

* Mono P-U convert a stereo pick-up so that it may play mono.

* Mono P-U trasforma l’ingresso stereo del pick-up in mono.

 

 

 

Back panel : power supply, L/R record, pre-out. output R. Inputs: extra, tuner, pick-up, tape head, mic.

Pannello posteriore : spina di rete, L/R record, pre-out. output R. Inputs: extra, tuner, pick-up, tape head, mic.

 

 

 

 

 

ELECTRICAL

Sensitivities for 125 mV output :

  • Pickup (RIAA characteristics) 3 – 5 mV

          Input impedance  70 k – 100 kOhms

  • Tuner  35 mV

           Input impedance  70 k – 100 kOhms

  • Extra   35 mV

          Input impedance  70 k – 100 kOhms

  • Microphone  2 mV

          Input impedance 120 kOhms

  • Tape Head (CCIR Characteristics)  3 mV

          Input impedance 120 kOhms

 

Bass control : ± 14 dB at 50 c/s

Treble control : ± 14 dB at 20 kc/s

 

Distortion : less than o.o1 % for 125 mV output.

Hum and Noise :  approx. 60 Db below full power output on tuner or extra and 52 dB below on other inputs.

 

Are available on request the service and owner's manuals and schematics.

 

Sono disponibili su richiesta il manuale di servizio e di istruzioni nonché gli schemi.

 

 

 

 

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