|319,400yen(October, 1985 release)
Power amplifier of a tube.
In order to make
the charm and the its stuff of a thermionic-tube no one but show fully, an
operation in a Class-A area is carried out.
The auto-bias scheme is adopted
Twin-Triode 6CG7 from which a drive electrical power is
obtained by a low impedance is adopted as the driver circuitry which drives the
power stage, and it is made to carry out a generous operation in a whole page
push pull stream composition.
While securing a regulation high also at
the time of an overcurrent by carrying a mass transformer in a power source,
careful consideration is carried out also to the polar mandatory.
the exclusive transformer of the optimal ultra linear interconnection for an
auto-bias circuitry is adopted as an output transformer, and the high region
property and distortion which were smoothly extended to 100kHz have realized the
tone quality of a tube no one but.
The S.T.A.R. circuit of the view
which is not made to interfere in each circuitry block is adopted.
||Tube power amplifier
||40W+40W (8 ohms, 1kHz, both channel simultaneous operation)
||0.2% or less (1kHz, 1W)
2.0% or less
||10Hz - 30000Hz - less than (1W) 1dB
|SN ratio (IHF-A correction)
||100dB or more
||Input level set (right-and-left interlock
Line phase sensor
||290W (Electrical Appliance and Material
||Width 434x height 176x depth of 252mm