Thanks for the reply, yes i did look at the 132-3 but i simplt dont have the
rack space, i need to add 4 vcas. Changing the parts is no problem (i do
this all day at work) Are you able to let me know a parts list and which
need to be changed.

Paul

On Tue, Feb 9, 2010 at 6:21 PM, < yahoo@... > wrote:

>
>
> > Rack space is an issue atm and i need both lin and log vcas, so im
> > looking at a little shopping. Since the quad vca was put back to
> > summer ive started to look at the A-132-1 was wondering if it was
> > possible to modify it
> >
> > regards
> >
> > Paul
>
> Depends upon the perception of "modify". You have to replace the linear
> current source of the A-132-1 by an exponential type (one operational
> amplifier, two transistors and a couple of resistors and capacitors). In
> any
> case electronic experience is necessary. Or you look at the A-132-3 which
> has two VCAs that can be switched to linear or exponential.
>
> Best wishes
> Dieter Doepfer
>
>
>


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