Power-Supplies for Digital-Echo-Delay PUBLIC

Dual Output Power-Supply: +9VDC & +5VDC

Dual output power-supply circuits for the Digital Echo/Delay. Two versions shown; one battery powered and one adapter powered. The battery-powered supply is for stomp-box applications, and provides +9VDC from an ordinary 9V battery, along with regulated +5VDC for the PT2399 echo chip. The adapter supply is a fully regulated supply for rackmount applications, and provides a regulated +12VDC from the adapter, +9VDC from an 9v regulator, and +5VDC from a 5V regulator. The adapter and both regulators were chosen to handle the current required. Part numbers and suppliers are given in the diagrams.