Learning the ropes with electronics hardware can be full of little 'gotchas' - but don't be discouraged! Steve writes - One of the most common pieces of circuit bending hardware is the single-position-dual-throw (SPDT) switch. I recently ran into a wiring problem and made an illustrated post on how I figured out the solution and some guesses as to why I came to the solution i did. Hopefully it could save some people the hassle of having to rewire their project up like i did. - toggle switch wiring problems fixed and explained
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http://blog.makezine.com/archive/2008/09/spdt_switch_wiring_explai.html