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Manufacturer's Specifications |
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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 |
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