Lo volt power supply rvfm 52 2641 this lo volt power supply unit provides voltages of 2 4 6 9 12 or 14v ac or unsmoothed dc at 4a continuously or up to 5a for periods of 1 hour voltages are selected by means of a rotating switch on the front panel in any case of overload including direct short a current sensing circuit breaker mounted on the front panel will operate and disconnect the output voltage outputs are taken from colour coded 4mm sockets mounted on the front panel an illum