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DOKORDER 1140

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Technic details

Specifications

Type:
Professional Tape Recorder
Recording system:
4-track, 4-channel recording & playback, stereo compatible
Heads:
Three head system
Motors:
4/8 pole hysteresis synchronous for capstan x 1
6-pole induction for reels x 2
Tape speeds:
38.1 cm / s (15 ips)
19.05 cm / s (7-1/2 ips)
Reel capacity:
10-1/2” or 7”
Frequency response:
30Hz to 26kHz / 30Hz to 23kHz, ±3dB (At 15 ips)
30Hz to 24kHz / 30Hz to 20kHz, ±3dB (At 7-1/2 ips)
S / N ratio:
Better than 60dB (WRMS)
Better than 56dB (RMS)
Crosstalk (1kHz):
Better than 58dB (WRMS)
Better than 50dB (RMS)
Wow and flutter:
Less than 0.04% at 15 ips (WRMS)
Less than 0.07% at 7-1/2 ips (RMS)
Less than 0.06% at 7-1/2 ips (WRMS)
Less than 0.1% at 7-1/2 ips (RMS)
Equalization:
NAB
Bias frequency:
200kHz, ±10%
[Input per channel]
Sensitivity / impedance:
0.25mV (-69.8dB) / 600Ω (MIC)
77.5mV (-20dB) / 100kΩ (Line)
[Out per channel]
Output level / load impedance:
0.775V / 10kΩ (Line)
2mW / 8Ω (Headphones)
Fast forward and rewind time:
Within 85 sec. (2500 ft. tape, 10-1/2” reels)
Semiconductors used:
LSI’s x 3
IC’s x 10
Transistors x 105
Diodes x 102
Power requirements:
AC 117V, 60Hz
Power consumption:
130VA
Dimensions (W x H x D):
432 x 508 x 419mm
Weight:
Approx. 29.9kg
Year:
1976

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