Re: M-3: Chorus Channel Down 3db

[bnelson@glasscity.net (Bruce "Doc" Nelson)]

This is a common problem, especially with older C-2 / B-2 models.  There are
large, 1.0 uf/450 volt used in the Vibrato/Non-Vibrato circuits that go bad
after time. Replace them.
Bruce

>> HA>Hello M-3 Users,
>> 
>> HA>I have noticed that when I push the chorus tabs on either the upper or
lower
>> HA>manual on my M-3, the volume drops about 3db(possibly more). This has no
>> HA>effect on the Percussion channel so the perc is why too loud.
>> 
>> HA>Is this normal or does it sound like the vibrato channel needs attention?
>> HA>Is this the same effect as the "normal" percussion on a B3/C3 drop by 3db?
>> 
>> I'd say this is normal.  Mine does this too.  When turning the vibrato
>> (chorus) on, the volume jumps a bit.  When I turn it back off, the
>> volume level drops.  Perhaps someone more knowledgeable than I can give
>> you a technical description of why this happens.
>> 
>> -frog-
>
>OK, while we're on this thread, mind does this as well, but it's 
>accompanied by a pronounced "thump" when I switch the vibrato either on 
>or off.  Am I the only one lucky enough to have this feature?
>                        
>John Brevik            
>brevik@math.berkeley.edu
>                        
>
>