Audio Database

The

DIATONE DP-77B
34,000yen(around the 1972 time)

Description
 
It is a full auto record player which carries an auto mechanism.
Size is chosen according to the magnitude of a disc and all the operations are automatically performed only by pulling a lever.

The belt has adopted the polyurethane endless belt which gave precision polish.
Moreover, 4 pole synchronous motor of low vibration was adopted as the motor, and the stable rotation has been obtained.

S character type arm equipped with the inside force canceller or the lateral balancer is adopted as the arm part.

MM type cartridge is equipped standardly.
Moreover, CD-4 play is also possible only by attaching the exchange needle (MD-1) of CD-4 exclusive use to this cartridge.


Rating of a mode
Form Belt drive system full auto record player
Motor 4 pole synchronous motor
Turntable The product made from 31cm aluminum die-casting
Number of rotations 2 speeds (33 1/3rpm, 45rpm)
Wow and flutter 0.15%
Signal to noise ratio 45dB
Pickup Static balance type pipe arm
A lateral balancer, with an inside force canceller
Head shell The product made from a lightweight aluminum alloy, the Europe type plug-in system
(needle pressure Direct-reading type)
Cartridge High compliance MM type cartridge (MAG-1)
Needle pressure 2±0.5g
The needle used 0.5mil diagram needle (3D-37M)
Frequency response 10Hz - 25kHz
An attached mechanism Removal type auto hinge
Power supply voltage AC100V 50Hz/60Hz
Dimensions Width 460x height 180x depth of 370mm
Weight 8.5kg
Option Needle only for CD-4 MD-1 (7,000yen)