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Pioneer C-77

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Technic details

Specifications

Type:
Stereo pre amplifier
Equalizer / Control amplifier part:
3 steps of first rank differentials hardwired-connection final-stage Class-A SEPP
Input terminal:
Phono 1 - 2.5mV / 50kΩ
Phono 2 - 2.5mV to 10mV / 50kΩ
MIC - 2.5mV / 50kΩ
Tuner, AUX 1, 2 - 150mV / 100kΩ
Tape Play 1, 2 - 150mV / 100kΩ

Phono maximum allowable input:
Phono 1 - 500mV (Harmonic distortion factor 0.05%, 1 kHz)
Phono 2 - 500mV to 1000mV (Harmonic distortion factor 0.05%, 1 kHz)
Output terminal:
Tape Rec 1, 2 - 150mV / 2.2kΩ
Output (R / L - 50kΩ) - 2V / 600Ω, 7V / 600Ω
Harmonic distortion factor (20Hz to 20kHz):
0.03% (2V output)
0.05% (7V output)
Frequency response:
Phono 1, 2 - 20Hz to 20kHz ± 0.2dB
Tuner, AUX, TapePlay - 10Hz to 70kHz + 0 - 0.5dB
S / N ratio (IHF, A network, Short circuit):
Phono - 74dB
Tuner, AUX, TapePlay - 90dB
Tone control (1.5dB steps):
Bass Main - ±7.5 dB (100Hz)
Sub - ±4.5dB (50Hz)
Treble Main - ±7.5dB (10kHz)
Sub - ± 4.5dB (20kHz)
Filter:
Low - 15Hz, 30Hz (12dB / oct)
High - 12kHz, 8kHz (12dB / oct)
Attenuators:
0, -15, -30dB
Semiconductor used:
IC - 2
Transistor - 50 pieces
Diode, others - 31 pieces
Power supply voltage:
100V, 50Hz / 60Hz
Power consumption:
17W (Electrical Appliance and Material Control Law)

External dimensions (W x H x D):
480 × 186.5 × 365mm
Weight:
480 × 186.5 × 365mm
EIU standard rack mounting unit:
4U
Year:
1980

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