|98,000yen(around the 1975 time)
The control center which aimed at the correspondence
to a broad cartridge by the capacitance change circuitry etc.
switch not only about a part of an equalizer circuitry resisted (resistor) but
about capacitance. This pulls out the performance of a cartridge and a play in
the outstanding property is possible. Resistance can be switched in three steps
and capacitance can be switched by a two-step.
Input-sensitivity regulating function is also carried in Phono2.
power source constant-voltage-ized by the high power-source utilization factor
of an output stage and the high voltage of ±42V has realized the allowable input
The constant-voltage regulated power supply supplies the
voltage stabilized also in the transition of the primaryAC line voltage, and has
eliminated the interference through a power source.
The output stage
consists of differential-amplification circuitries which used the low noise PNP
transistor for the first rank, and the output stage has three-step
hardwired-connection composition which suppressed the occurrence of crossover
distortion or switching distortion by the perfect complimentary SEPP circuit.
NF type tone control of 11 contact rotary switch type is carried.
Circuitry serves as a three-step direct coupling system which has a differential amplification in the first rank and has an SEPP circuit of a perfect complimentary Class-A operation in an output stage like an equalizer. Moreover, in the turnover frequency, each bass and high temperature serve as a two-step change.
Furthermore, the defeet switchpoint is also carried.
The switchpoint type attenuator of 26 steps is carried so that exact
volume control can be performed.
The active row / high light filter of -12dB /, and oct are carried.
A row/high A two-step conditioningregulation is possible respectively.
The muting circuit which prevents the shocking sound at the
time of power-source on/off is carried.
Two tapes monitor circuitries
which can be dubbed mutually are carried.
||Stereo control amplifier
|An Output voltage/impedance
||Rate: 1V/500 ohm
Maxima: 10V/500 ohm
||Phono1:2mV/25kohm, 50kohm, 100kohm
2:2-10mV of Phono(es) / 25kohm, 50kohm, 100kohm
Tuner, Aux1, 2:100mV /
|Phono maximum permissible input
||520mV (rms, 1kHz)
Tuner, Aux: 90dB
||Phono:RIAA standard curve ±0.25dB
|Tapes monitors 1 and 2
||Playback: 100mV / 47kohm
||Bass: ±7.5dB (50Hz)
||Bass: 125Hz, 500Hz
Treble: 2kHz, 8kHz
|A low filter
||15Hz-12dB / oct
30Hz-12dB / oct
|A high filter
||10kHz-12dB / oct
15kHz-12dB / oct
||Width 450x height 173x depth of 266.5mm