conversion from boss foot switch to 3pdt

Started by distinctlyamerican, January 15, 2013, 04:58:26 PM

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distinctlyamerican

Hi there, putting together a multi effect pedal. Building most of the circuits by hand but I have an old boss super chorus i'm thinking of stripping from the enclosure and placing in the multi effect. To do this I would need to convert to a 3pdt. Anyone have experience doing this?

armdnrdy

This will show you the ins and outs of FET switching.

http://www.geofex.com/Article_Folders/bosstech.pdf

Thank R.G. for making this available!
I just designed a new fuzz circuit! It almost sounds a little different than the last fifty fuzz circuits I designed! ;)

Mark Hammer

Note that, because they use FET-switching and input/output buffers,  Boss pedals do NOT use a terminating resistor on the input cap.  This means you will often hear a thump when you first plug in.  But more importantly here, you will hear a pop when you switch, using a 3PDT, UNLESS you add a terminating resistor to the input.  Chances are very good that a 1M resistor from the input pad on the board to ground will do the trick.