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Technic details
Specifications
Type:
Tube Pre Amplifier
Input sensitivity / impedance:
Phono1, 2 - 1.2mV / 47kΩ
Tuner1, 2 - 70mV / 150kΩ
AUX1 - 0-70mV adjustable / 70kΩ
AUX2 - 70mV / 150kΩ
Tape Head - 9.5 cm / s, 19 cm / s - 1.6mV / 470kΩ
MIC - 1.4mV / 47kΩ
Rec out - 70mV / 500Ω
Playback - 70mV / 150kΩ
Rec / Play (DIN) - 70mV / 90kΩ, 150kΩ
Output level / impedance:
15V / 500Ω (Maximum output)
[S / N ratio (IHF, A network)]
Input short / Input open:
Phono1, 2 - 64dB or more / 58dB or more
Tuner1, 2 - 75dB or more / 70dB or more
AUX1, 2 - 75dB or more / 70dB or more
Tape Head:
9.5 cm / s - 63dB or more / 50dB or more
19 cm / s - 63dB or more / 51dB or more
MIC:
63dB or more / 55dB or more
Total harmonic distortion (1kHz):
0.1% or less
[Frequency characteristics]
Phono1, 2:
Within ±0.3dB deviation from RIAA standard curve
Tuner1, 2:
5Hz to 50kHz, ±0.5dB
AUX1, 2:
5Hz to 50kHz, ±0.5dB
Tape Head:
9.5 cm / s - Deviation from NAB 9.5 cm / s curve ±0.5dB (Adjustable)
19 cm / s - Deviation from NAB curve 19 cm / s, ±0.5dB
MIC:
10Hz to 50kHz, +0 -1dB
[Semiconductors used]
Vacuum tubes:
12AX7 x 8 pieces
6X4 x 1 piece
Transistors:
2SB126 x 1 piece
Diodes:
SW-1-01 x 4 pieces
Power supply:
AC 100V, 50 / 60Hz
Power consumption:
35VA
External dimensions (W x H x D):
420 x 150 x 250mm
Weight:
7.6kg
Year:
1968
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