Audio Database


Pioneer PL-28
32,800yen((?) at the 1960 in-the-late time)

The stereo record player which adopted the hysteresis synchronous type motor.

The stylus-force indicating mechanism is carried in the tone arm.

The oil dumping arm elevation organization in which a record and their needle point are not hurt is carried.

Rating of a mode
Form Record player
Auto organization Motor power-source auto switchpoint
Idler auto controller
Tone arm rise-and-fall organization
Motor 4 pole hysteresis synchronous type
Turntable The product made from diameter aluminum die-casting of 30cm (weight of 1.6kg)
Rotation unevenness 0.12% or less
Rotational frequency 33 1 / 3 or 45rpm
Cartridge man-month type (PC-10)
Needle 0.6mil diamond needle
Frequency characteristic 20Hz-20kHz}2dB
Channel isolation 20dB or more (1kHz)
Output voltage 5mV (1kHz, 50 mm/s)
Output balance 2dB or less (1kHz, 50 mm/s)
Direct current resistance 500ohms
Load resistance 50kohm
Needle point compliance 10x10 to 6 cm/dyne
Tracking error }1 degree
Proper stylus force 2.5g-3.5g
Tone arm Light metal static balance type
Stylus-force Direct-reading type wait
Switching needle Diamond needle PN-10 (1,800yen)
Power source AC100V, 50Hz/60Hz switching type
Dimensions Width 448x height 197x depth of 407mm