So I'm working on an idea I had and have run into a snag regarding power. I'm attempting to combine two electronic instruments, two effects pedals, and a small photo-theremin circuit together into one unit. I've been able to figure out all the connections between the different circuits but could use some help to figure out how to eliminate the need for batteries or at least reduce them in number without sucking them dry too fast. I've scoured the net looking for a solution, but can't find anything that allows for multiple different voltages to be pulled from one power adapter at the same time (or I'm just using the wrong search terms).
What I'm trying to combine:
What I would like to be able to do is eliminate the batteries all together without having a stream of wallwarts tethered to the thing to supply power to all the individual components. Is it possible to have one power input that splits the power into different voltages internally? I've got a little bit of electronics know-how. At least enough to figure out how to combine circuits in the correct order and read schematics and wiring diagrams, but figuring out how to split incoming power into multiple voltages confuses me.
What I'm thinking is the voltage would be split into the following taps:
What I'm trying to combine:
- Casio SA-7 keyboard -requires 4 x AA batteries or 6v power supply
- Blue Man Group Percussion tubes - requires 4 x AA batteries or 7.5v power supply (not sure why it needs more power if it's plugged in)
- Ping Pong Echo FX pedal - requires 1 x 9v battery or 9v power supply
- Ibanez SD-9 Super Distortion pedal - requires 1 x 9v battery or 9v power supply
- Photo-theremin - requires 2 x AA batteries or can be tapped into keyboard power since it doesn't require much power to run
What I would like to be able to do is eliminate the batteries all together without having a stream of wallwarts tethered to the thing to supply power to all the individual components. Is it possible to have one power input that splits the power into different voltages internally? I've got a little bit of electronics know-how. At least enough to figure out how to combine circuits in the correct order and read schematics and wiring diagrams, but figuring out how to split incoming power into multiple voltages confuses me.
What I'm thinking is the voltage would be split into the following taps:
- 3v for the theremin
- 6v for the keyboard
- 7.5v for the percussion tubes
- 9v for the distortion pedal
- 9v for the echo pedal