Your explanation is over my head. I only see 6 connection points left on my pcb: 2
ground, a0, a1, V+, V-. and another ground at the other end. I have a 2pole 5 position
switch.
>
> you have to extract the switch wiring from the schematic. you will be switching between
four combinations of +V and ground (two bit binary combinations). at a0, positions 1 and
3 are connected to ground, and positions 2 and 4 are +V. at a1, positions 1 and 2 are
connected to ground and positions 3 and 4 are connected to +V. i strapped the ground
and +V connections to each other on the switch, ending up with only one +V and one
ground wire from the switch to the PCB.
>
> i did order a component kit from scott and im glad i did--it made the build go
smoothly.
>
>
>
> --- On Wed, 8/6/08, adaaxs <wonggster@...> wrote:
> From: adaaxs <wonggster@...>
> Subject: [ModularSynthPanels] Threeler
> To: ModularSynthPanels@yahoogroups.com
> Date: Wednesday, August 6, 2008, 8:58 AM
>
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> I think I am feeling a bit dumb today. Or I am excited to get this up.
>
> I am wrestling with this threeler and have some basic questions. The first thing is that I
>
> realise that I have no understanding of how to spec out or buy a rotary switch. If
anyone
>
> knows of a simple way of expressing what to get I would be pleased. I see a 2 pole 4
position
>
> switch but nearly every 4 position switch I see is 3 poles. I don't get it and I am stuck for
a
>
> switch.
>
>
>
> I also can't see 2 of the the wiring points for the switch unless it is A0, A1, V-, V+.
>
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> Is there a BOM for this puppy ?
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>
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> Also is it cool to sub a 150pf for the 180 pf ?
>
> Same question for 47pf or 68pf forthe 56pf?
>
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> best
>
>
>
> g
>