Instead of using Out1 or Out2 to switch from single to dual mode, I would
recommend a real switch. This could let you use both Outs in Dual mode and
help prevent confusion about which jack switches the unit to dual mode. It
also would allow switching in/out additional sources on the fly to your
existing audio or modulation sources, a very useful realtime function.
John Loffink
microtonal@... ----- Original Message -----
From: <mate_stubb@...>
To: <motm@yahoogroups.com>
Sent: Sunday, March 04, 2001 12:34 AM
Subject: [motm] Re: Mixer design as of now
> This sounds good to me. So 7 knobs, 1 switch, 8 jacks, right? A
> typical full 2U panel.
>
> Do you need a mockup? What do you want the labels to say?
>
> Your thinking behind making OUT2 the 6x1 output is that with only 1
> output jack inserted, the main out is at the corner of the module?
>
> Either OUT1 or OUT2 as the 6x1 output works for me. I agree with
> Larry that whichever output works as the 6x1, that's the one that the
> offset pot must be summed with, so that it can work at all times.
>
> Moe
>
> --- In motm@y..., "Paul Schreiber" <synth1@a...> wrote:
> > Here is what I'm about to commit to for the mixer unless someone
> else
> > convinces me elsewise:
> >
> > ∗ 2U wide
> > ∗ dual 3:1 or single 6:1
> > ∗ it splits into dual mode when a jack is inserted into OUT 1
> > ∗ DC path. Can mix AC and/or DC. Uses OP285GP amps. This is a lower
> > offset/drift version of the OP275GP
> > ∗ Has a -5V to +5V DC bias pot, which is switch in/out via panel
> switch.
> > Only offsets OUT 2.
> > ∗ 2 reversing attenuators (1 in each mixer)
> > ∗ NO 'master Gain' it takes a dual pot and I'm not going down that
> road
> > (like 18 weeks lead time).
> > ∗ $169 kit/$229 assembled
> > ∗easy to build, no trimmers. About as hard as a '420 kit.
> >
> > Well?
> >
> > Also: I have some new Switchcraft 113 jacks for sale. The are like
> the 112As
> > except:
> >
> > ∗ single open circuit (doesn't have the 3rd shorting lug)
> > ∗ has an isoloated N.O (Normally Open) switch (on 2 seperate lugs)
> >
> > The mixer needs a 113E version, which has a N.C. switch
> (grrrrrr.....)
> >
> > Regular about $2.50ea. I'll sell em for 10 for $8.00 That's cheap!
> You don't
> > ∗have∗ to use the switch :)
> >
> > Paul S.
>
>
>
>
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