PLAN B analog blog

A dual VCA would be very useful for such things as controlling the
level of envelope into lopass gate via velocity, sequencer row output,
etc, or controlling lof depth via pressure controller/footpedal etc,
not to mention the obvious signal lever uses, either internally, or at
the output of a patch.  Obviously, Doepfer's little 4u dual VCA would
work, but I had an idea for a slightly more complex piece with a
couple of useful add-ons - a 6-u wide dual VCA, from the top down:

row 1: VCA 1 input, jack socket on the vertical centre line
row 2: 2 items; LH a switch, AC/DC coupling, RH a socket, LIN VC IN
row 3: 2 items; LH a switch, 0 gain, 1/2 gain, unity gain, RH a
socket, EXP VC IN
row 4: VCA 1 output, a jack socket on the vertical centre line

The switch would be useful for tuning - you could use it to fully open
the VCA to tune a VCO that's running through it, also to check the
maximum level of a CV that's going through it, also as a performance
control - some drastic timbral change could be instantly switched in
using it.  Probably there would be other uses as well, with
experimentation.

If Plan B were to introduce this piece, I'd buy 2 of them for sure,
and I imagine they'd see a lot of use.


On Thu, Feb 28, 2008 at 12:28 AM, Anthony Rolando
<goldenechos@hotmail.com> wrote:
>
>
> Obviously the Lo Pass Gate makes a great choice if you do not need a
> terribly quick and accurate VCA!
>
> Tony
>
> ________________________________
> To: PLAN_B_analog_blog@yahoogroups.com
> From: thighp@aol.com
> Date: Wed, 27 Feb 2008 23:00:05 +0000
> Subject: Re: [PLAN_B_analog_blog] Plan B VCA?
>
>
>  There is one in the M25 but I'd love to see a module with multiple linear
> and exponential vcas.
>
> Thighp.
>
>
>
>
> On 27 Feb 2008, at 11:05, cray5656 wrote:
>
>
>
>
> will there ever be a Plan B VCA?
>
>
>  =
> ________________________________
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