If you have an electric guitar, then you know you need an amp if you want to actually hear the electric guitar. The problem is solved with the milli-AMP! The milli-A1MP uses a bridged LM386 amplifier circuit to produce around two watts of output power. Power comes from a rechargeable 9V battery and provides around an hour of play per charge at full volume. For its size, the milli-AMP is more powerful than any commercially available amp. At 2.25" x 3.5" x 1", it's small enough to fit in your pocket. The volume and distortion are controlled by the volume knob on the guitar.
Required Tools and Parts
Case for the charger circuit. (The example uses an iPod Nano case)