PCB mount style rotary switch: what type of proto board???

Started by iforgot, March 14, 2017, 11:16:07 AM

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iforgot

Hi all,

Bit of a noob question here.  I'm looking to mount some 8 to 12 position rotary switches to prototyping board (could be perf, vero, or whatever works).  I could use switches with solder lug terminals, but for space saving purposes I want to look into soldering the switches onto prototyping board. 

What are my options here? 

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More info if needed:

Application: control plate mounted, on guitar electronics.  (Looking for size similar to control plate/pickguard mounted pots.)  I'm willing to pay a little more than the cheapest switches for something sealed and reliable.  Ideally cost (e.g. from mouser) would be no higher than 5-7$/switch. 

Typical, circle arrangement terminals:
What kind of prototyping board (if any) can be used with those?

Straight line terminals?

I know some switches come with terminals that are arrange in straight lines, which makes them compatible with any board of the right pitch.  (E.g. http://www.mouser.com/ProductDetail/ALPS/SRBV141201/?qs=sGAEpiMZZMvNbjZ2WlReYusHPuglWmCRbDFD7tt03CM%3d).  Are there switches of this type people would recommend?

EBK

Need more info to visualize what you are asking for.

What kind of guitar/control plate?  Do you have a switch configuration in mind (how many poles)?
What kind of electronics are you going to control with this (is it something that needs to on a board, or can it be wired directly)?

Most importantly, are you looking for cheap? reliable? easy?  Are you against etching a PCB to adapt an odd pin arrangement to fit your needs?

If you are dead set on mounting it to a board, you could always make anything fit on perfboard, regardless of pitch, by expanding existing holes or drilling new ones until all your terminals can fit through.  You could even mount solder lugs to a board this way if you wanted to. You could do the same with Vero if you are really motivated to do so and are patient enough, taking care to knock out any unwanted tracks and manually rewiring pins to available tracks as needed.

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Technical difficulties.  Please stand by.

iforgot

I'm interested in knowing more about how to fit rotary switches onto boards independently of my current project.  For this project I could see soldering everything directly onto the switches.  I was considering boards for space saving and for a cleaner build.  But because this time around I could solder everything onto the switches, etching a board seems like overkill. 

The circuit will be very simple: variable cap in a traditional guitar tone control circuit (with 1x master volume and 1x master tone pot). 

What's unusual is how many cap values I want access to.  I haven't decided yet, but I'm seriously considering using two switches in parallel with one for small increments and another for larger increments.   I haven't settled on how many poles, but I could see using 1 switch with 6 poles and another anywhere between 6 and 10.  If I go for a single switch setup I could go all the way up to 12 poles.   

(The pickups on that guitar are designed to be extremely sensitive to changes in cap values and load.  (There are multiple very useful spots in the range between 500pf and 4700 pf alone.) I'm considering a double switch setup because, with those pickups, the sweet spots for cap values shift a ton with small changes in cable/guitar to amp (or buffer) capacitance.  This would allow me to fine tune the circuit )