POWER SUPPLY CONTINUOUSLY VARIABLE is built in suitably sized steel cabinet employing modern technique and circuit, meters for measuring voltage ,gives continuously variable a.c. and d.c. outputs up to 10 A for a.c. and 8 A for d.c. A meter is provided to indicated both a.c. and d.c. voltages. An internal fuse is provided for input and a resettable cut-out for output. With mains lead.