Luthiery Laboratories

The subject of capacitors in guitars is rife with fraud and nonsense. The fact is, the capacitor is not IN the signal path, it is very much OUT of it, and only has any effect when you select it, which is probably pretty seldom. The capacitor is part of a low-pass ( or rarely high-pass ) filter, basically a frequency-dependent leak to ground. It is not making 'tone', it is taking it away. The type of capacitor that you use for this really doesn't matter at all, as long as you don't use a polarized one the wrong way. Orange Drop, oil-in-paper, film, ceramic -- makes no difference. Anyone who claims it does either has a very vivid imagination or is trying to sell you something.

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