Hey Chris, not my choice really, but since i am retired now,
and so i started accepting tube amps for repairs, keeps me on my toes....
there are a lot of models here and one of the favorites is the sansui AU-111 integrated...
i did an SCA-35 recently too, came with most of the psu parts missing...
nailed that one too....
and so i started accepting tube amps for repairs, keeps me on my toes....
there are a lot of models here and one of the favorites is the sansui AU-111 integrated...
i did an SCA-35 recently too, came with most of the psu parts missing...
nailed that one too....
Hi AJT,
Yes, the AU-111 is a neat amp. Heavy as sin though. Now that I've also done a lot of tube amp repairs, I can really do a nice job on mine. I'll need my friend to get it on the bench as it weighs a solid 80 pounds, maybe more.
I just did a Pioneer SM-83. They ran all the inputs, high and low level, through the same amplifier stage, only changing the EQ. I had phono-like hum on every input but tape. That was the only high level input on the thing. I changed the wiring to feed the phono amp with fixed EQ into the selector switch as a high level input, and the other inputs then were switched normally. Still sounds very bass heavy, treble cut.
That one used 7189 output tubes (like a 6BQ5) for an output of 27 (claimed) wpc output.
-Chris
Yes, the AU-111 is a neat amp. Heavy as sin though. Now that I've also done a lot of tube amp repairs, I can really do a nice job on mine. I'll need my friend to get it on the bench as it weighs a solid 80 pounds, maybe more.
I just did a Pioneer SM-83. They ran all the inputs, high and low level, through the same amplifier stage, only changing the EQ. I had phono-like hum on every input but tape. That was the only high level input on the thing. I changed the wiring to feed the phono amp with fixed EQ into the selector switch as a high level input, and the other inputs then were switched normally. Still sounds very bass heavy, treble cut.
That one used 7189 output tubes (like a 6BQ5) for an output of 27 (claimed) wpc output.
-Chris
To be charitable, 27 WPC is inflated.
20 honest WPC can be squeezed out of real 7189s. Check out the Sherwood S5000. We are fortunate to have a current production tube, which is a genuine 7189 equivalent. It's the Russian 6p14p-ev, AKA EL84M.- Status
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