[sdiy] Modular Cabinet Help

[Jim Patchell]

"Grant L. Muller" wrote:

>         Hi, I'm new to the list, and I'm just starting to get into Modular
> Synthesizer construction. I just have a few simple questions if you could
> please help.
>
>         1. I am not new to electronics, but I am very bad at laying out a PCB from
> a schematic as of yet (I'm getting better!). Are there any sites that have
> some of the basic modular components (VCO's, VCF's, VCA's) with schematics
> as well as PCB layout/diagrams, this would help tremendously.
>

   Yes, there are a few places to get that info.  TomG's website comes to mind.  He
has been changing things around  And, now that I just looked in my bookmarks, I see I
do not have his new website url :-(

    You can also go to my web site http://www.silcom.com/~patchell  I have a schematic
and PCB layout, but...I don't think it would qualify as "simple".  Still, you might
have some fun looking at it anyway (follow the link for the SMB).

    Also, you can look at the stuff the paia sells.  http://www.paia.com  Check out
their new 9700 series synth.


>
>
>         2. I would like to have an audio input on my modular synthesizer, so i can
> plug any output from my mixer into the system, and filter etc. to my liking.
> Is there a way to do this. I'd like the Audio input to be one module in the
> system, as opposed to modifying a filter to allow for this, is there a
> special schematic for this?
>

    Generally, there have been modules that combine a preamp and an envelope
follower.  Somebody (maybe tomg) has schematics for such a thing.  The outputs from
these modules generally include the raw amplified signal, the envelope, and a GATE
signal that is derived from the envelope.

>
> Thanks, any help whatsoever is greatly appreciated
>
> Grant