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Unread 04-11-2007, 06:17 PM   #1
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Tone Caps

I have a .047 200v tone cap tht i mght put in my ibanez seven string, so i can learn how. But normally, is that such a good idea? It has a 100v in there right now, and i think its ceramic.
Like if i put a .022 which i noticed are often used for les pauls, and put it in a strat or something, what would happen?

thanks


*EDIT*
the one i might put in the seven string is a "sponge" tone cap.

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Unread 04-11-2007, 06:33 PM   #2
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I believe it changes the frequencies affected by the tone knob. The higher value the cap, I think the more highs are sucked out as you turn down the knob. I should go check on that, though.
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Unread 04-11-2007, 07:11 PM   #3
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Tone caps bleed frequencies to ground. Different values let different amounts at different frequencies through. Higher cap values will effect a wider range of frequencies. Lower values will effect higher frequencies.

100v vs. 200v shouldn't make a difference.
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Unread 04-11-2007, 07:12 PM   #4
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Rainer's right - the value determines the freq where the highs will be bled off, along with the impedance of the ciruit, which is affected by the pickups. Don't worry about the voltage rating, that doesn't matter. The higher the value, the lower the freq at which the cap will suck highs - in other words, the higher the value, the more pronounced the effect. I think passive electric guitars pretty much always use something between .022 and .047 mfd. If you are a big tone pot user, experiment with a couple different values.
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Unread 04-11-2007, 11:48 PM   #5
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Thanks guys, i put the 47 in the ibanez and it works great, i really like how much tone control i get from it.
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Unread 04-12-2007, 11:44 AM   #6
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Quote:
Originally Posted by Major Tom View Post
Rainer's right - the value determines the freq where the highs will be bled off, along with the impedance of the ciruit, which is affected by the pickups. Don't worry about the voltage rating, that doesn't matter. The higher the value, the lower the freq at which the cap will suck highs - in other words, the higher the value, the more pronounced the effect. I think passive electric guitars pretty much always use something between .022 and .047 mfd. If you are a big tone pot user, experiment with a couple different values.
Does anyone know how one might go about wiring a reverse tone pot? As in sucking out the lows, rather than the highs.
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Unread 04-13-2007, 10:36 PM   #7
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Does anyone know how one might go about wiring a reverse tone pot? As in sucking out the lows, rather than the highs.
Yeah, instead of a cap, you use an inductor coil. Wire it in just like the cap, but instead of shunting high freqs to ground, it will shunt low freqs to ground. Bill Lawrence used to make one for that purpose, I don't think they do any more. You could use an old pickup, a strat pickup, or maybe just one coil from an old humbucker would fit into a control cavity. I've been meaning to hook one up like that for years, just to see how well it would work, never got around to it yet....
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Unread 04-14-2007, 05:47 PM   #8
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Hmm... experiment time. I should see if I can get a pickup into my LP, make a master passive bass/treble control.
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