DC input voltage regulator board for Boss DR-55 drum machine. Can replace original AA battery operation. Provides a regulated 6v DC output from any 9-15v DC power supply. Optional 3v lithium battery for memory back-up. No modification of original circuit needed. Can be installed in a variety of ways both temporary and permanent, internal or external. Pre-assembled PCB, choice of panel mount or in-line DC socket to suit the user's requirements. PCB can be insulated with heat shrink tubing and simply sit inside the battery compartment or permanently mounted to the inside of the DR-55 using the 3.2mm mounting holes. Connects back-to-back with existing battery clip.
Option 1 - Panel mount kit. Includes pre-assembled PCB, panel mount DC socket (12mm cut-out), mounting hardware (M3 screws, nuts, spacers), heat shrink insulation.
Option 2 - In-line kit. Includes pre-assembled PCB, in-line DC socket on flying wires, heat shrink insulation.
A short PDF installation guide is available here