He takes an octal relay and wires it up with a small mains transformer for an immediate and very cheap inverter. It’s not perfect, as he points out the frequency isn’t right. The relay will ...

documents that his CCFL inverter is a resonant Royer oscillator ... A little math told him that he could achieve this by rewinding the transformer’s primary with only 4 turns.

The device consists of a built-in MPPT charge controller, an AC charger, and an inverter with a low-frequency transformer. “It allows for surge power at three times of the rated power to support ...