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Subject: Re: 1U MOTM panel for three passive attenuators

From: "wjhall11" <wjhall@...>
Date: 2009-01-31

Will just pointed out that if we use 100K lin pots for such a gadget,
we could have a switch to send the signal through a couple op-amps
with resistors to make the pot act like a log pot... so we could
switch each pot between lin (truly passive) and log (via op amps and
resistors set to unity gain). He's thinking Tellun MUUB4. Kind of a
cool idea. I'll ask him to explore the little circuit design. So
this would be an added benefit of building it into a 1U panel... that
it could have this active component just for fun. Bill and Will



--- In ModularSynthPanels@yahoogroups.com, Mark <yahoogroups@...> wrote:
>
>
> Very interesting, but from just looking at them, they don't seem all
> that mechanically reliable. You can also put attenuators, mults,
> and other passive circuits (rectifiers, high pass filters, etc) in
> little boxes. I've seen people use breath mint tins, plastic food
> containers, film canisters, etc. Fine for home use, imho.
>
> On 1/29/09, Scott Juskiw put forth:
> >A possible option might be to roll your own port-a-pots:
> >
> >http://moogarchives.com/portapot.htm
> >
> >Saves eating up panel space. And if you need 10 of them one day, just
> >build yourself 10 of them.
> >
> >Would be nice of some company actually made these for general purpose
> >use: injection molded one piece tubular design with a small pot on the
> >side, wouldn't need to have a big knob sticking out like the Moog ones.
>