cream123
JustAskinologist
Found this on diystompboxes.com
You can do it with just about any phaser, flanger or chorus. Unfortunately, most commercial phasers, flangers and chorus pedals use a single FET to "bypass" the effect by cancelling the wet signal. This creates a logistical problem. Since getting the pitch vibrato involves lifting the dry signal while the wet signal is on, you can't simply switch the effect in and out with the existing electronic switching. the "bypass" mode will simply end up being silent.
There IS a solution, though. The flip-flop circuit only uses one of its two outputs to engage the single FET. If you interrupt the dry path to the mixer stage and insert a SPST toggle in parallel with a second FET, and connect that FET to the other side of the flip-flop, the pedal will always make the connection for the dry path when in bypass mode, and you'll be able to have the dry path either on or off when in effect mode.
You can do it with just about any phaser, flanger or chorus. Unfortunately, most commercial phasers, flangers and chorus pedals use a single FET to "bypass" the effect by cancelling the wet signal. This creates a logistical problem. Since getting the pitch vibrato involves lifting the dry signal while the wet signal is on, you can't simply switch the effect in and out with the existing electronic switching. the "bypass" mode will simply end up being silent.
There IS a solution, though. The flip-flop circuit only uses one of its two outputs to engage the single FET. If you interrupt the dry path to the mixer stage and insert a SPST toggle in parallel with a second FET, and connect that FET to the other side of the flip-flop, the pedal will always make the connection for the dry path when in bypass mode, and you'll be able to have the dry path either on or off when in effect mode.
