Preamp-Amplifier   -   Amplificatore integrato

FRONT PANEL: Glass panel at top. Anodized gold at bottom. Input selector: aux, tape, tuner, phono 1, phono 2 and tape hd. Bass and treble each dual concentric. Volume. Mode selector: L to L+R, R to L+R, stereo rev, stereo, mono (L+R), L+R to L and L+R to R. Balance. Rocker switches: comp: RIAA or LP, tape monitor, phase: 0 or 180, speaker: on or off, power: on or off, LF: flat or filter, HF: flat or filter, loudness: flat or compensate. Headphone jacks. Red power indicator.

PANNELLO FRONTALE : Parte superiore in cristallo, parte inferiore in anodizzato dorato. Input selector (in alto a sinistra) : aux, tape, tuner, phono 1, phono 2 and tape hd. Controlli bass e treble (in alto al centro) separati per ciascun canale. Volume (in alto a destra). Mode selector (in basso a sinistra) : L to L+R, R to L+R, stereo rev, stereo, mono (L+R), L+R to L and L+R to R.. Balance (in basso a destra).8 interruttori (in basso  al centro) : comp: RIAA or LP, tape monitor, phase: 0 or 180, speaker: on or off, power: on or off, LF: flat or filter, HF: flat or filter, loudness: flat or compensate. 2 ingressi cuffia. Indicatore di accensione in rosso.

BACK PANEL: Barrier strips for 4, 8, and 16 ohms, Outputs: Tape and L+R. High level inputs: tape mon, aux, tape and tuner. Low level inputs: ph 1, ph 2 and tape hd. Ground binding post. AC outlets: 2 switched, 1 unswitched. Fuse.

PANNELLO POSTERIORE : uscita speakers con ponticello per 4,8,16 ohm. Uscite: Tape e L+R. Ingressi ad alto livello: tape monitor,aux,tape,tuner.Ingressi a basso livello: phono 1,phono 2,tape hd. Collegamento per messa a terra. 3 prese elettriche (due dipendenti,una indipendente dall’accessione dell’apparecchio). Fusibile.

TUBES: 4-7591, 2-12AU7, 12AX7.

Size 5-7/16"H, 16"W and 14-1/2"D. Weight 43 lbs.

ELECTRICAL

Stereo. Hybrid (solid state preamp and tube power amplifier).

30w/ch stereo, 60w mono.

Response 20-20kHz (+0 -0.5dB).

Distortion 0.5%.

Noise and hum -75dB high level, -60dB low level .

Output impedance 4, 8 and 16 ohms.

Damping factor 10.

Input sensitivity and impedance: high level 0.25V at 250k, phono 1.5mV at 47k, tape head 1.5mV at 1 meg. Tape output 0.25V into 25k. L+R output 10V into 5k.

Dual concentric tone controls +18dB to -18dB.

LF filter 50Hz at 12dB/oct.

HF filter 5k at 12dB/oct.

Year of construction: 1963 - 1966

CARATTERISTICHE

Amplificatore stereo ibrido ( sezione pre a transistor – sezione ampli a valvole)

Potenza:  30 w per canale (stereo) – 60 w (mono)

Risposta:  20-20kHz (+0 -0.5dB).

Distorsione 0.5%.

Noise and hum -75dB high level, -60dB low level .

Output impedenza 4, 8 and 16 ohms.

Damping factor 10.

Input sensitivity and impedenza: high level 0.25V at 250k, phono 1.5mV at 47k, tape head 1.5mV at 1 meg. Tape output 0.25V into 25k. L+R output 10V into 5k.

Dual concentric tone controls +18dB to -18dB.

LF filter 50Hz at 12dB/oct.

HF filter 5k at 12dB/oct.

Anni di produzione: 1963 - 1966 

Are available on request:

Owner's manual

Service Manual

Sono disponibili su richiesta :

Manuale di istruzioni

Manuale di servizio

Links

Roger Russel's Infos www.roger-russell.com

Audioclassics www.audioclassics.com

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