The document describes building a Marx generator, which is a type of voltage multiplier circuit that can produce high voltage pulses from a low voltage DC source. It functions by charging capacitors in parallel and then discharging them in series, multiplying the output voltage. The document outlines the components needed, including capacitors, resistors, a 9V battery and a flyswatter transformer. It discusses problems encountered, such as only half the stages sparking initially, and solutions like replacing batteries. The final results showed a 1 cm spark from 16 stages, matching the expected theoretical output of around 30,000 volts.