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Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 12:41 pm
by stripes
k, so i can just attach the switch to the points on the bottom of the board where R15 is with two 18k resistors in between?
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 12:44 pm
by skullservant
Yeah, try that. And if it doesn't work just use one and see how that sounds!
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 12:50 pm
by Officer Bukowski
Yeah solder it to the bottom, clip off the original resistor first though. Probably easiest to just clip it off so you don't accidentally rip the solder pad out.
Looking at your DPDT like this
1 2
3 4
5 6
3 is going to one of R15s pads, 4 to the other. The order doesn't matter.
18k resistor between 5 and 6
4k7 resistor between 1 and 2
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 12:53 pm
by stripes
SO HELPFUL... if i had a DPDT instead of a SPDT

Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 12:58 pm
by Officer Bukowski
It's ok you can use an SPDT too, it's just a little messier.
I started writing an explanation, but I made it pretty confusing so I'm going to draw you a picture. I'll be back in a minute

Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 1:10 pm
by Officer Bukowski

I'm still in bed so it's on top of my cat blanket

Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 1:51 pm
by stripes
Officer Bukowski wrote:
I'm still in bed so it's on top of my cat blanket

omg yr great thank you
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 2:27 pm
by mysteriousj
Tell me if it works because I haven't actually tried it but have a board for it I've never built up. In theory it should work though. Confidence building post right??
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 2:40 pm
by Mike
You could do this with an SPST.
You need what... 4.7K and 18K options, right?
Here's a few... SPDT on the first one, SPST on the second two.

Mike
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 4:28 pm
by stripes
no matter what i'm clipping R15 off of the board, correct?
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 4:45 pm
by Officer Bukowski
You could clip one leg and use that resistor if you don't have another 4k7.
I'd personally just clip it off and hide the resistors under the board just to make it look neater
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 4:49 pm
by stripes
just found a dpdt at radioshack, so i'm gonna do that first thing that you described, seems a lot neater. i'll let you know how it works!
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 4:53 pm
by skullservant
Totally neater and easier! Yay!
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 5:08 pm
by mysteriousj

This will do the same and you won't need to pull any resistors, just solder on top or on the bottom of R14. Any resistor 5k6 - 8k2 will be okay.
Re: I want to start building, guide me?
Posted: Wed Dec 05, 2012 6:09 pm
by stripes
oop, didn't see that post ^^^ until just now. already wired up dpdt like bukowski told me to and it works great! the difference is subtle, but it's there.

