Back of led board with leads unconnected.
Leds blink with the relays
Leds soldered to IC socket and plugged in board.
Inside the sound box
Power amp using a LM2876
Percussus, box stained as rosewood and finished with semigloss lacquer.
Percussus on tripod. A special tripod was built later just for Percussus.
Added one big relay at bottom right
Big relay added toward lower right with series 20 watt resistor.
Closeup of leds
Speaker box for the amp
Wheels are mounted on the bottom of the speaker box
A 10 inch vintage speaker from the 50's will be used inside the box.
Speaker box with heavy aluminum grill
Back of speaker box
Back panel with amp and power supply
New tripod for Percussus
Back tripod leg brace
Front mounting plate
Inside tripod showing hinge
Percussus with second box at Robogames 2011 (won the Silver)