Abstract: A high frequency power supply for distributed luminous tube signage including a master power unit and one or more slave units. The master unit includes a digital oscillator, controller, and electronic switches to induce a switched high frequency waveform across the primary of an output transformer. This waveform is preferably of a non-symmetrical variety to minimize neon bubble formation and mercury gas migration. The output transformer includes one or more low voltage ancillary power outputs for interconnection through appropriate twisted pairs or other transmission medium to the slave units. A high voltage secondary for direct luminous tube connection may also be provided. Various slave unit topologies are contemplated including remote or moving luminous tube segments; electronic controllers and sequencers, and motors.