1bassleft
Lowdown Cack-hander
Joined: 16 Feb 2005
Posts: 3951
Location: "Hit The North"
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 Posted: Tue Mar 07, 2006 1:18 am Post subject: |
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Not really, I'm very ropey on the theory myself and had to have a web-rummage. Yes, the output is feeble (a pup's output voltage ranges from 0.1 to 1V) but, of course, an alternating current is induced in the coil. When the string waves around through the magnetic field, an alternating current would oppose it. Combination of raw ignorance and too tired to think it through. Apologies.
As for the other bit; again this is surmising from my hotch-potch of garnered electricals - not the word of a trained sparkmeister. I suspect that you get only minimal changes in output level when flicking from one pup to both because the two pups are wired together in parallel. If they were wired in series, then you would get a noticeable increase in output level as you switch to the combined. I think that's right anyway.
As you already know, some pups have a higher output than others but this can also be necessary to counteract the variation in the way strings move the further you go away from the bridge. If anyone's interested in a quick read that's been written so as not to crush your head in, click here at Helmuth Lemme's page:
http://www.buildyourguitar.com/resources/lemme/
I know a few fiveheads that would argue with some of the points, but it helped get me thinking straighter. |
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