The show went about as well as one might expect it would when someone is playing a meowing cat keyboard through a distortion pedal and a megaphone. We tried people's patience. I think our band may only have 8 lives left.
Nonetheless, I would be remiss if I didn't show you how to add an output jack and volume knob such that you too can use it to make a terrible racket at underground rock shows in Oakland.
Step 1: You Will Need
- Meowsic Keyboard
- 100K potentiometer
- 100K resistor
- 10uF capacitor
- SPDT toggle switch
- 1/4" mono jack
- A knob
- shrink tube (or electrical tape)
Step 2: Open
Step 3: Drill
Drill another 9/32" hole about an inch to the side of the first hole for the potentiometer. To keep the potentiometer from spinning in place, it helpful to drill another 1/8" hold just to the side to catch the little mounting tab.
Finally, drill a 1/4" hole about an inch to the side of the potentiometer for the SPDT switch.
Step 4: Wire It Up
The 100K resistor will bridge the outer terminal of the switch to one of the outer terminals of the potentiometer. The other outer terminal of the potentiometer will be connected to ground from the keyboard's power supply.
The positive side of the 10 uF capacitor connects to the center terminal of the potentiometer and bridges to the signal tab on the audio jack (where the negative terminal connects).
The barrel of the jack also connects to ground.
For more info, check out the schematic in the final picture of the series. To learn how to read schematics, check out the Basic Electronics instructable.
Step 5: Clean Up
Step 6: Case Closed
Step 7: Knob
Step 8: Rock
Pictured is the band AIDS Walk (trying to look serious) moments before making a terrible racket.