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Voltage mixing with dual Sequential Switch

Voltage mixing with dual Sequential Switch

2007-06-15 by Andrew

I'd like to build a dual Sequential Switch module, with the two SS's
completely independent. One thing I would do with them is have SS #1
running from a clock, and SS #2 running from the same clock divided
down to /8 speed.

So SS #1 plays a sequence, and SS #2 provides a transposition voltage
so that you end up with a 64 step sequence.

I want to *mix* the outputs of SS #1 and SS #2, but I'm concerned about
how high the total voltage could be (20 volts?). If I take the output
of SS #2 and patch it into the MIX IN of SS #1, will this keep the the
output of SS #1 to 10 volts or less? Or should I use a Mixer module;
can that limit the output voltage?

I realize the range of each SS could be 0~5v (instead of the normal
0~10v), but I'd rather they both have the full 10v range.

Any ideas or suggestions?
thanks! Drew

Re: Voltage mixing with dual Sequential Switch

2007-06-15 by sasami@hotkey.net.au

>I want to *mix* the outputs of SS #1 and SS #2, but I'm concerned about
>how high the total voltage could be (20 volts?). If I take the output
>of SS #2 and patch it into the MIX IN of SS #1, will this keep the the
>output of SS #1 to 10 volts or less? Or should I use a Mixer module;
>can that limit the output voltage?

Just use the Mix In. It is exactly the same as using a DC mixer. As for the
range, sure, it could add to the point where you hit the power rails, BUT
this happens everywhere there is DC mixing anyway. What prevents you from
going too high is practicality. For VCO control, going over 10 volts will
not result in a usable signal anyway. The pitch will be way too high.


Ken
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
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