The FMR-HV1 is used to power the high voltage seek relays used in many late 1950’s Delco® Wonderbar® radios. The FMR-HV1 is a current limited supply that works with both the low impedance and high impedance style relays.
With it’s 52V open circuit output voltage, even the high impedance style relays will operate normally without having to weaken the return spring. Unlike competing supplies that operate at 20-40kHz causing noise across the AM band, the FMR-HV1 uses an automotive switching regulator operating at 2MHz. Since this frequency is above the AM band, the FMR-HV1 cannot interfere with AM reception.
The FMR-HV1 is fully self contained and requires no external components. It is designed to wire directly between the FMR-1 and the seek relay. It’s ultra small size and high efficiency allow it to be easily mounted anywhere inside the radio.
As with all Aurora Design products, the FMR-HV1 is designed to SAE specifications and designed and built in the USA at an ISO9001:2000 facility.