This is part whimsical sculpture and part audiophile amplifier. Many recycled parts were used in this amplifier, including a tin can, two crossover inductors, used CO2 cartridges, a hard drive part, copper tubing, vintage functioning Triplett panel meter and solid brass needle valves. The glass "atomic" beads were hand made by my sister-in-law who makes lampwork beads in her home studio. The amplifier is a battery powered, Class D, TPA3110 that makes 5 watts.