Re: Mictester's CMOS Relay Bypass Module

Posted by Silver Blues on
URL: http://guitar-fx-layouts.238.s1.nabble.com/Mictester-s-CMOS-Relay-Bypass-Module-tp19021p19142.html

Well, the guy who developed these originally developed a very simple circuit that used a SPST or SPDT on/off switch, however this version uses Schmitt triggers to toggle the coil in a latching relay with a momentary switch. There are a few user-submitted versions in the FSB thread but many are overly complicated - the best two IMO are the original latching one here and the non-latching one in my original post.

You do however need a latching relay. Any of the ones listed in the layout will work, I'm partial to the Takamisawas. Be careful though if you try and order NEC relays from eBay that you are getting specifically EA2-5SNJ and not anything else.