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Audio and Video Talk
Vinyl
SANSUI AU111 valve amplifier service
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<blockquote data-quote="Ampdog" data-source="post: 61676" data-attributes="member: 144"><p>I have the Sansui AU111 amplifier with me. Simple fault (and one too frequently encountered in Japanese amps of that era): Loudspeaker slide switches for output impedance selection, phase reversal and what not.There are three of them in the circuit, some at the back and one on the front panel - flimsy things and the thin leads run all over the place.</p><p></p><p>The circuit is impressive, if making provision for rather too many things, but I believe that had sales value at the time. The main amplifier is one of a very few that used the cathode distributed load output topology as in the Quad II - have yet to measure what the equivalent UL taps are. In that sense it must have been quite a flagship in its day.</p></blockquote><p></p>
[QUOTE="Ampdog, post: 61676, member: 144"] I have the Sansui AU111 amplifier with me. Simple fault (and one too frequently encountered in Japanese amps of that era): Loudspeaker slide switches for output impedance selection, phase reversal and what not.There are three of them in the circuit, some at the back and one on the front panel - flimsy things and the thin leads run all over the place. The circuit is impressive, if making provision for rather too many things, but I believe that had sales value at the time. The main amplifier is one of a very few that used the cathode distributed load output topology as in the Quad II - have yet to measure what the equivalent UL taps are. In that sense it must have been quite a flagship in its day. [/QUOTE]
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Audio and Video Talk
Vinyl
SANSUI AU111 valve amplifier service
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