|120,000yen(around the 1976 time)
It is the power amplifier of Feature series.
source according to right-and-left channel and two sets of monophonic amplifier
are constituted on the same chassis.
Thereby, the time combination and
electrostatic coupling in the mutual intervention and high region from a power
source are lost, and the separation between channels is improved.
The 3 steps of symmetrical full complimentary Darlington OCL circuit and
the 2 steps of differential amplification current mirrored live system
symmetrical drive is possible and also a low distortion is possible for few
distorted current mirror circuits conjointly at a three-step Darlington circuit
and high gain with large direct-current current gain.
combination of the transistor which was excellent in the current mirrored live and the high frequency characteristic, the improvement of the standup
characteristic of a pulse and the distorted characteristic of a high region is
Two pieces and the electrolytic condenser of 70V or
12000-micro Fx2 are carried for the power transformer of 250VA in the
The heat sink of 0.35 degree C per channel/W is
attached to the exterior.
Thereby, a cooling effect is high and it is
possible to use the junction temperature of a power transistor, stopping it low
High reliability is conjointly secured with the parallel push pull
of the power transistor of Pc=150W.
The speaker change has adopted the
direct speaker terminal which uses the relay for protection as it is.
Thereby, since there is no conventional speaker changeover switch, the fall
of the dumping factor by the contact resistance of a speaker changeover switch
does not occur.
The preamplifier of Feature series, docking, and remote
control are attained.
||Stereo power amplifier
|20Hz - 20kHz :
|Music power :
|EIAJ (distorted 5%) :
|At the time of an Output power :
|At the W (20Hz - 20kHz) time of one :
|Output power (-3dB, 1kHz) :
|Cross modulation distortion (1W,
|Frequency response (0.5W, -0dB one dB)
||10Hz - 100kHz
|Output bandwidth (IHF 0.1% distortion)
||10Hz - 50kHz
|Conformity load impedance
|Electrical Appliance and
Material Control Law :
|Output power (8ohms) :
||Width 425x height 170x depth of 285mm