|120,000yen(around the 1976 time)
It is the record player which aimed at investigation of the basic engine performance, and coexistence of the auto mechanism by introducing EC (Electronic Control) system.
Even if it auto-izes, in
order to maintain the high basic engine performance, the arm position detection
mechanism by the uncontacted system which does not apply any side pressure to an
arm is adopted.
Since it is the design which operates while detecting by no
contacting in which position within a level drive the state (is the arm going up
or is it descending?) of an arm lifter and an arm are, auto operation is
possible from every position. Moreover, except while the arm is moving by auto,
manual operation is possible without change operation of an auto manual.
The system which used the reflector is adopted as the detection
mechanism of record size. Light is glared from the slanting upper part of a
record with a reflector (prism), and light is led to the sensor corresponding to
each record size, and also the output from a sensor is put into a logic circuit, and size is made to judge by this system.
The needle descent position at the
time of an auto performance, the end position of a performance, and the
turntable rotating speed are automatically determined by this size detection
The control knob uses the truth black switch.
The auto mechanism is controlled by the IC-ized logic circuit. This control part is
constituted combining reliable IC, and has eliminated the problem by wear, adjustment gap, etc.
The original mechanism which built the damper into
the core of a balance weight is adopted as a tone arm part, and the vibration is
dumped. Moreover, it changes into the conventional aluminum pipe and the
rigidity of the pipe part is improved using the stainless steel pipe with larger
The plug-in mechanism of a chuck type is adopted as the plug-in
part which attaches head shell, and combination of head shell and a pipe part
has become a more positive thing by binding head shell tight from four
Furthermore, the span of a perpendicular pivot is extended and
the power committed by adopting a full-scale radial ball bearing as a level
bearing in the direction which pulls a pipe, or the direction to twist is
The independent motor the object for horizontal and for
perpendicular is used for the drive of a tone arm, and it has prevented
affecting the drive system of a turntable.
The direct drive motor which
adopted as detection of a rotating speed found the integral type FG system
(system which changes and detects a rotating speed in frequency) is adopted as a
drive motor. Moreover, by a direct-drive system, since it does not have a
deceleration mechanism, it becomes disadvantageous in respect of the torque, but
the high torque has been acquired by adopting direct-current motor of starting
torque 1.2 kg-cm as a motor.
While adopting a 1.8kg turntable as a
turntable, examination is added also to the turntable sheet.
added to especially the turntable sheet in respect of hardness, specific
gravity, thickness, etc. about adhesion nature and sound quality with a record.
It is designed from this result become earthenware mortar-like slightly.
Moreover, about the quality of the material, it is determined together with the
character which a tone arm and others have, and is designed become a value of
maximum 5.5mm in thickness, specific gravity 2.0, and hardness 40.
electronic slide system using LED is adopted.
With the stroboscope equipment using a neon lamp, since luminescence time was long, while emitting light, eye stroboscope stripes moved and the blot had generated it. In order to lessen this blot, the signal of the very short pulse width of 1 / 1000 seconds is made in electronic using a commercial cycle, and LED is driven with this signal.
The electronic formula muting mechanism is carried.
precision die-casting base is adopted.
||Electronic-control full auto player
||4 phase 12 pole 24 slot, FG and a DC servo
||The product made from 312mm aluminum alloy
|Moment of inertia
|Number of rotations
||33 1 / 3 or 45rpm
||Electronic formula (auto or manual)
|Wow and flutter
|Signal to noise ratio
|<Tone arm part>
||A static balance type and a universal S
character pipe arm
|Tracking error angle
||+ 2.9 degrees-1.5 degrees
|Needle pressure adjustment
||Direct-reading types 0-3 g (0.1g step)
||The product made from aluminum die-casting,
|Head shell part weight range which can be attached
12g-20g (sub-wait use)
|< attached mechanism, other
|Anti skating mechanism
||The variable type corresponding to needle
||The electronic stroboscope by LED, inside 照式
||Height adjustment is possible.
||The product made from aluminum die-casting
||Rosewood tone finishing
||A free stop hinge and attachment and
detachment are possible.
Acrylic resin fabrication
|Power-source fuse capacity
||Width 475x height 150x depth of 370mm