|380,000yen(release time -unknown)
Control amplifier developed as an economy model
which inherits the vacuum-pipe Puri concept accumulated by SA-5.
circuit which combined solid-state two with the vacuum pipe is constituted, and
each strong point is pulled out.
Moreover, by devising the circuit which
carries out maintenance supply of the voltage stabilized with solid-state
technology, the excessive burden to a vacuum pipe is eased and the life is
The power supply unit was separated with the chassis main
part, and bad influences, such as a ham, are eliminated.
The power unit of
SA-3 supplies about 50J as a power source.
Only the good thing of the
characteristic which passed the turning-on-electricity test which exceeds 100
hours with the equipment of TBD-15 altogether is noisily adopted as a vacuum
pipe. The vacuum pipe of the high-pressure capacity excellent in these
linearities was constituted from a cathode follower circuit, and the stable
characteristic and outstanding sound quality are realized.
engine performance of the vacuum pipe is pulled out by performing perfect bias
||Tube control amplifier
||Phono: 47kohm (100PH)
|Output load impedance
||5Hz - 27kHz (50kohm load)
||Width 483x height 58x depth of 300mm