Guitar Effects Pedal Power Supply
December 30, 2009
Abstract: I built a power supply (R.G. Keen's Guitar Effects Pedal Power Supply) as a gift; it is one of my first projects using the Valkyrie-clone CNC machine for PCB fabrication. The Power Supply is a bow power supply, and the source is at http://www.geofex.com/Article_Folders/Spyder/Spyder.htm
One board has 6x basic regulators, another has 2x "Deluxe Regulators". The resistors for "deluxe" are specified 240, 1.1k, a 500ohm trimpot and a 100ohm trimpot. The 100 ohm trimpot must be capable of 0.5 Watt dissipation.
The Xicon transformers (Mouser part #41PG006) are mounted seperately: the leads from the secondary coils go to the AC jumpers. Each 4 DC outputs are connected to a DB-9 connector; the DB-9 connector attaches to four 2.1mmx5.5mm DC barrel jacks, negative pin, which connects to most effects pedals.