cghoyt
Rookie Solder Flinger
Posts: 16
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Post by cghoyt on Nov 23, 2005 17:33:38 GMT -5
Hello folks,
I am currently building a guitar and i'm only stuck at one place in the wiring schematics. I want to put push/pull pots as the tone pots and have 2 different capacitor values so that I can push and pull the pot to choose between the caps. I know how to wire in the two capacitors on the push/pull pot, but I'm not sure what to do with the 2 middle leads. Sorry if my explanation was a bit vague, but hopefully you guys can help me out.
Thanks a bunch,
Christopher
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Post by Mini-Strat_Maine on Nov 23, 2005 18:19:18 GMT -5
Hello folks, I am currently building a guitar and i'm only stuck at one place in the wiring schematics. I want to put push/pull pots as the tone pots and have 2 different capacitor values so that I can push and pull the pot to choose between the caps. I know how to wire in the two capacitors on the push/pull pot, but I'm not sure what to do with the 2 middle leads. Yeah! I'm glad he asked that, because I'm not 100% sure on any of the leads. While you're at it, could you include a diagram on how to wire the caps for the two different settings, or point me to a diagram where we already have that info? From there, I might even be able to figure out how to rig a parallel fixed resistor for one position of the push/pull.  Thanks. -- Doug C. |
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Post by Mini-Strat_Maine on Nov 25, 2005 14:27:15 GMT -5
Bumping Christopher's question back into the spotlight . . .
I hope nobody passes up replying because they think I could have given him a useful answer.
I see JohnH is up and awake, so maybe he can help.
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Post by jimplaysguitar on Nov 28, 2005 13:29:39 GMT -5
Just thught i'd clear this up, since no one else is..  Jim |
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Post by Mini-Strat_Maine on Nov 28, 2005 13:36:46 GMT -5
Just thught i'd clear this up, since no one else is.. Nice! Thanks, Jim. |
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Post by UnklMickey on Nov 28, 2005 18:58:14 GMT -5
Just thught i'd clear this up, since no one else is.. Jim when i first looked at this, i thought: well that's kinda dumb. why waste the other half of that switch. but as i thought about it a bit longer, i reckoned, if the other half of the switch isn't needed for something else, using it to provide mechanical support for the other side of the caps could be pretty handy. |
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Post by Mini-Strat_Maine on Nov 30, 2005 15:13:39 GMT -5
but as i thought about it a bit longer, i reckoned, if the other half of the switch isn't needed for something else, using it to provide mechanical support for the other side of the caps could be pretty handy. Y'mean like duct tape the caps to the body of the switch? (Half joking, there.) And by "other half," the push/pull part? Now I've just gotten another idea, which is actually sorta related to Christopher's original question. My Squier Bullet doesn't have a tone control yet, but I'm still thinking about a push/pull pot wired as above, with maybe a .015 and a .047 cap, just to go from one extreme to another. With a .022 cap being a standard for a lot of unmodded guitars, how well would this work? - A .022 cap "always on" the tone control, except when
- The .047 cap is "switched on" by one position of the p/p
- Both of the above in series, for 0.014986µF (thanks, Wolf), on the other position of the p/p.
I just discovered than a .033 and a .047 would come pretty close to .020, also. Hmm. It probably won't fly, but I haven't yet thought out why not. A DPDT on/on/on might work out better, maybe? Do I have entirely too much free time to think up this stuff, or what? ;D |
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Post by jimplaysguitar on Nov 30, 2005 16:40:49 GMT -5
 Lol. What does two capacitors in parallel do? I believe they are added together, so taking my original diagram thing... And using a DPDT switch where the middle possition is like this...  Let's say you use a .033 mfd and a .022 mfd capacitor With the switch in the middle possition, the capacitance (is that a word?) will be .055 mfd. That's probably too high, but you could do it with any two caps. Dunno about a push pull. Jim
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Post by UnklMickey on Nov 30, 2005 17:16:01 GMT -5
add
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Post by jimplaysguitar on Nov 30, 2005 17:18:47 GMT -5
You replied as i was modifying my post  lol. |
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Post by UnklMickey on Nov 30, 2005 17:49:54 GMT -5
know whatcha mean. that's happened to me before. kinda makes ya feel like a doofuss, but as forest would say: "it happens."
BTW, i don't think you'll ever find a push-pull with 3 positions, so your choices are A or B or A or A+B or A or A*B/(A+B), depending on how you wire it.
i think you'll probably be happiest with your original idea of .015 and .047. the difference is NOT that extreme. you may want to go even farther apart. caps are cheap. try some different values and see what you like best. (larger values cut down to the upper midrange / low treble. smaller values cut high treble only)
oh yeah,
hey Christopher, how you doin'?
we're bouncin' all these ideas on top of your thread, and nobody even bothered to say WELCOME ABOARD!
(well, i guess i just did.)
Unk
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Post by jimplaysguitar on Nov 30, 2005 18:12:42 GMT -5
but as forest would say: "it happens." I would quote what the other guy says, but.. " foul language is inappropriate and unneccessary to the conduct in the GuitarNuts2 environment." Lol. Jim |
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Post by UnklMickey on Nov 30, 2005 18:22:53 GMT -5
yeah, that was the implication i was going for there.
i like to be suBtle.
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Post by jimplaysguitar on Nov 30, 2005 19:35:50 GMT -5
Seems like theres no more than about ten active users on here, lol. Just a random thought.
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cghoyt
Rookie Solder Flinger
Posts: 16
Likes: 0
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Post by cghoyt on Dec 1, 2005 14:33:56 GMT -5
hey guys,
thanks for all of this help. it's looking good.
check out my other thread where I'm gonna post the final schematics minus the grounding routes. Please tell me what you guys think.
Thanks again,
Christopher
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Post by UnklMickey on Dec 2, 2005 12:45:27 GMT -5
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Lol.
lol.