||44,500yen(around the 1972 time)
|48,500yen(around the 1973 time)
A direct-drive phone motor and the stereo record
player which adopted S character type tone arm.
The direct-drive scheme
which used the brushless DC servo motor for the motor is adopted.
a turntable directly without a belt or an idler, the motor oscillation by the
high velocity revolution of the rotation unevenness resulting from a propagation
system or a motor is banished.
Moreover, the rotational frequency was
automatically controlled by the electronic circuitry which consisted of a
transistor and diode, and the exact rotation which is not influenced by
variation of an off-site temperature or supply voltage is realized.
The pure electronic formula which can be held only by constant switching of an
electronic circuitry is adopted as 1 / 3 or 45rpm velocity change.
it is 33, supervising a stroboscope. It can tune independently finely by ±2% of
within the limits by 1 / 3 or 45rpm each.
S character type tone arm is
adopted as a tone arm, and the arm bearing part is raising the sensitivity by
examination of pivot form and the quality of the material. Furthermore, the
numeric value of the stylus-force tick mark shows the anti skating bias value to
cancellation of the inside force as it is using the original anti skating
organization of Pioneer which combined the spring and the cam.
while the head shell has also adopted the lightweight type of a hole difference and aims at a reduction of an effective mass, trances capacity is raised in
consideration of the weight balance of a tone arm.
The cartridge was
made to reduce the effective mass of vibration system, and PC-330 of man-month
type cartridge which has improved the separation in a high region is adopted as
The low capacity code is adopted as output code, and the loss in a
super-high region is reduced.
Since it exchanges for a direct current by
the voltage stabilizer of built-in of a power source and the motor is driven, it
is not necessary to exchange a pulley with the line frequency of 50Hz/60 Hz.
The cabinet of a double structure which combined the metal base and the
wood of rosewood finish is adopted as a cabinet.
Moreover, an oscillation is suppressed by the possible insulator of a height
coordination, and the extraneous vibration is reduced.
||Brushless DC servo hall motor
||The product made from diameter aluminum
alloy die-casting of 31cm (1.4kg)
||33 1 / 3 or 45rpm (a fine tune is possible)
|Rotational frequency adjustable range
||Less than ±2%, an each rotational frequency
|Rotational frequency switching
||0.06% or less (WRMS)
||55dB or more
|<Tone arm part>
||Static balance scheme S character type pipe arm
(Plug-in type head shell)
|Mounting cartridge span
||man-month type (PC-330)
||0.5mil diamond needle (PN-330)
||3mV (1kHz, 50 mm/s)
||10Hz - 28kHz
|Proper stylus force
|An attached organization
||Arm elevation organization
|The semiconductor used
||Transistor: 12 pieces
Diode: 19 pieces
||Width 480x height 185x depth of 410mm