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Re: quad vca?

2004-03-17 by Tim Stinchcombe

Having just responded about the A-135 in my last post, I started 
thinking about this again:

> > Will be very easy bring the individual outputs to front, just a 
little
> > DIY...
> 
> 
> I did kind of think of that at one point.  If that could be done 
neatly and
> simply, then that would be a very interesting (to me) module.
> 
> Has anyone modified this module in this way?

I don't have an A-135, but having just read that it uses the CEM3381, 
bringing "the individual outputs to the front" is likely to be a non-
trivial mod. The CEM3381 is a current output device, and I suspect 
this means that the outputs from all 4 sections are summed and 
converted to a voltage using a single op amp. To get at each section 
would thus require adding 4 more op amps, one for each section. 
Probably do-able, but certainly not a simple matter of adding 4 jacks 
and 4 bits of wire...

Tim

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