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Year of manufacture: 1953-1958
Manufactured by: Manufacturer; Marantz Company, 44-15 Vernon Blvd., Long Island City 1, New York.
Price when new (in the USA): early version: $155 with cabinet, $142.50 without
later versions: $168 with cabinet, $153.00 without
Description: preamplifier
Mono/stereo: mono
Distortion: 1% maximum IM at I5 volts output; virtually unmeasurable at normal levels
Frequency response: early versions:±1db, 20 to 40,000 cycles ±1db, later versions: 20 to 60,000 cycles
Noise: four microvolts equivalent maximum open circuit noise at first phono grid
Outputs: low-impedance output to amplifier, high-impedance output, unaffected by volume, tone and filter controls for tape recorder
Inputs: high impedance microphone; low-output and high-output magnetic cartridge: four high-level inputs (Tuner, Tape, TV and Extra)
Tone controls: bass (+17 to -10 db, 375 cycles); treble (±l0 db, 2,500 cycles)
Filter (Cut-off): Off, 10,7, and 5 kc
Record turnover: flat, FFRR, AES, Ortho-RIAA, Col LP, 800
Record roll-off: flat, FFRR 78, AES, Ortho-RIAA, LP-NAB, Early 78
Tubes: early versions: 2 x 12AX7 (ECC83); 1 x 12AU7 (ECC82); later versions 3 x 12AX7 (ECC83)
Dimensions (chassis): 13½ in. x 4 x 6 in. (343 x 102 x 152 mm)
Weight: 15 lbs (6.8 kg) with cabinet; 13½ lbs (6.1kg) without