Modular Synth Panels

-Got it, very clear.  This should be pasted into the schemo page.  It's stuff like this that 
leaves projects half finished.
>
> Your switch will use four of those points on the pcb:
> 
> +V
> ground
> a0
> a1
> 
> Hm, a 2-pole 5-position...so you should have two poles and ten positions total (five for 
each pole).  If so, you will only be using 8 of those positions (four for each pole).  Match 
up each pole with the first four switching points for that pole.  For example:
> 
> i used a 2-pole 6-position switch (2 poles in the center and 12 positions on the 
outside).  The positions were labeled 1-12.  I used positions 1, 2, 3, 4 for pole 1 and 
positions 7, 8, 9, 10 for pole 2.  So, when my switch was in the following positions A/B/
C/D, where
> 
> A 3LP
> B 2LP/1HP
> C 1LP/2HP
> D 3HP
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> ...then
> 
> A  ::  pole 1 > 1  ::  pole 2 > 7
> B  ::  pole 1 > 2  ::  pole 2 > 8
> C  ::  pole 1 > 3  ::  pole 2 > 9
> D  ::  pole 1 > 4  ::  pole 2 > 10
> (positions 5, 6 are unused, so lugs 5, 6, 11, 12 left alone)
> 
> Here's how I made my connections:
> 
> a0 -> pole1
> a1 -> pole2
> 
> strapped:  
> ground -> 1, 3, 7, 8
> +V -> 2, 4, 9, 10
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> After strapping the points on the switch, I just ran one wire for +V and one wire for 
ground back to the PCB.
> 
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> 
> *REMEMBER the preceeding example was for my switch.  If you have a five-position 
switch these will be different...probably something like:
> 
> A  ::  pole 1 > 1  ::  pole 2 > 6
> 
> B  ::  pole 1 > 2  ::  pole 2 > 7
> 
> C  ::  pole 1 > 3  ::  pole 2 > 8
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> D  ::  pole 1 > 4  ::  pole 2 > 9
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> Use your continuity checker on your DMM to make sure your results match these before 
you proceed.  If this is correct, then...
> 
> a0 -> pole1
> 
> a1 -> pole2
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> strapped:  
> 
> ground -> 1, 3, 6, 7
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> +V -> 2, 4, 8, 9
> (position 5 is unused, so lugs 5 and 10 will be left alone.)
> 
> Does this make sense?
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> --- On Thu, 8/7/08, adaaxs <wonggster@...> wrote:
> From: adaaxs <wonggster@...>
> Subject: [ModularSynthPanels] Re: Threeler
> To: ModularSynthPanels@yahoogroups.com
> Date: Thursday, August 7, 2008, 8:16 AM
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>             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 
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> switch.
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> > you have to extract the switch wiring from the schematic.  you will be switching 
between 
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> four combinations of +V and ground (two bit binary combinations) .  at a0, positions 1 
and 
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> 3 are connected to ground, and positions 2 and 4 are +V.  at a1, positions 1 and 2 are 
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> connected to ground and positions 3 and 4 are connected to +V.  i strapped the ground 
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> and +V connections to each other on the switch, ending up with only one +V and one 
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> ground wire from the switch to the PCB.
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> > i did order a component kit from scott and im glad i did--it made the build go 
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> smoothly.
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> > --- 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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> >     
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> >             I think I am feeling a bit dumb today. Or I am excited to get this up.
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> > I am wrestling with this threeler and have some basic questions.  The first thing is 
that I 
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> > realise that I have no understanding of how to  spec out or buy a rotary switch. If 
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> anyone 
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> > knows of a simple way of expressing what to get I would be pleased. I see a 2 pole 4 
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> position 
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> > switch but nearly every 4 position switch I see is 3 poles. I don't get it and I am stuck 
for 
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> a 
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> > switch.  
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> > 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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> > Also is it cool to sub a 150pf for the 180 pf ?
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> > Same question  for 47pf or 68pf forthe 56pf? 
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> > best
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> > g
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