libirm
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Post by libirm on Jan 10, 2008 20:28:27 GMT -5
I want to understand this: All strat wiring I have seen so far has had the cap one end to ground. Carvin example I copied has one end of the cap to the left tag on the vol. cap & the other end to the middle tag on the tone cap. Why? Could this be giving me the static noise I now have after the mods?
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Post by uberdavidson on Jan 10, 2008 22:30:22 GMT -5
A Capaciter works by letting Alternating currents pass and More Direct currents are sent away. The different values determine the level of the AC's. It is wired in series to a potentiomiter which is basically a variable resistor.
As you turn the resistor down, more current hits the capacitor. The capacitor lets the high frequencies go to ground (Thereby out of the curcuit) and the lower frequencies still go to your output. A tone knob is really a High Filter.
Yes, one side should go to a ground.
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Post by ashcatlt on Jan 11, 2008 0:48:10 GMT -5
Yes, one end of the cap>resistor series must go to ground. I don't believe it matters which of the two components come first in the series, though. In the strat the pot comes first. Some of us too...
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libirm
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Post by libirm on Jan 11, 2008 8:04:59 GMT -5
Thanks Guys~ Is that also true when there is only one volume pot and one tone pot?
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Post by ChrisK on Jan 11, 2008 21:18:11 GMT -5
The capacitor and pot (with only two terminals in use) comprise a two-terminal AC network.
The order (I didn't say polarity) of the components DOES NOT MATTER. This is true for any two-terminal network forever. If one has two separate tone networks, the individual order does not matter within each.
If one is sharing a common tone cap between TWO tone pots (as in a proper Strat), the shared cap must be connected to common since this IS NOT a two-terminal network (it's a three-terminal network).
(The terminals that one uses on the pot DO matter regarding rotational direction and taper.)
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libirm
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Post by libirm on Jan 12, 2008 8:05:12 GMT -5
If I understand you correctly Chris~ there are a couple of ways to get the cap in the circuit: one way is typical, one end to ground the other to tone pot. Another way is is one end to ground of volume and the other to+ terminal of tone pot. Either way the cap gets put into the circuit; I think Carvin puts it that way because it cuts one more step of soldering a ground wire to tabs between the volume & tone pots. I'm thinking that this might be a disadvantage should a leg break on the cap, the circuit would be broke Carvin's way, Fender's way would amount to loosing the effectiveness of a tone pot which most of us probably do not use much any way thus not much would be lost and can be repaired later. Another advantage to soldering it to the top of the cap is that is IS easier as well!
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