|48,000yen(around the 1979 time)
The full auto player which adopted the Quartz
nowait-lock uni-torque motor.
The uni-torque motor by a technology
original with a Lo-D is carried in the motor.
A uni-torque motor is a motor
which asked for perfect circular motion from the principle,A rotor magnet of a
doughnut form by which the magnetizing was carried out, and 2 sets of star-shaped flat coils shifted 22^5 degrees are consisted of by eight poles, and
the amount of torque generated from these two coils and magnets becomes fixed
very always about which moment. This principle can be expressed with the easy
numeric expression "sin2theta+cos2theta=1." In the
uni-torque motor, further, the simple structure of a brushless and a slotless
& coreless is adopted, and the endurance is also improving sharply.
rotation stabilized by pouring the crystal control (Quartz nowait-lock PLL
servo) which hardly receives a voltage fluctuation, and temporality and a
temperature change on this motor has been obtained.
The full auto
organization which adopted the motor only for an arm drive is carried.
designed so that this full auto organization may not interfere at the time of a
At the time of a record performance, the side pressure
depended on a return detection was not added, but the photoelectron type Ohtori
turn detection organization without an excessive distorted occurrence is
The gimbal support scheme tone arm excellent in flattery nature is adopted
as a light stylus-force performance.
Moreover, the head shell containing a
glass fiber is adopted as a head shell.
||Quartz nowait-lock DD full auto player
|<Phone motor part>
||Quartz nowait-lock DD full auto
||Flat form non-commutator DC servo motor
||310mmphi aluminum die casting
||33 1 / 3 or 45rpm
||Electronic control scheme
|Wow and flutter
|<Tone arm part>
||Stylus-force Direct-reading type static
balance type pipe arm
Head shell exchange system
|Arm effective length
|Stylus-force adjustable range
||0-3g / 1 rotation (being a 0.1g step Direct
|Application cartridge weight
||destination-memory type (MT-30)
||10Hz - 25kHz
|The needle used
||Width 435x height 128x depth of 375mm