Portable power supply

Claim 1

A PORTABLE MOTOR STARTER CIRCUIT FOR OPERATING FROM A SOURCE OF ALTERNATING CURRENT COMPRISING A METAL HOUSING, AIR VENTS FORMED IN THE WALL OF SAID HOUSING, A TRANSFORMER INCLUDING A HYPERSIL STEEL CORE HAVING A PRIMARY AND A CENTER-TAPPED SECONDARY WINDING THEREON, MEANS FOR SECURING SAID CORE DIRECTLY TO THE VENTED WALL OF SAID METAL HOUSING FOR DISSIPATING THE HEAT GENERATED IN SAID CORE DURING THE OPERATION OF SAID STARTER CIRCUIT, A SUPPLY CIRCUIT INCLUDING SWITCH MEANS MOUNTED ON SAID METAL HOUSING FOR SELECTIVELY CONNECTING SAID PRIMARY WINDING TO SAID ALTERNATING CURRENT SOURCE, AN APERTURED INSULATOR BLOCK MOUNTED ON ONE END OF SAID CORE, FIRST AND SECOND HIGH DENSITY CERAMIC DIODE RECTIFIERS MOUNTED WITHIN THE APERTURES OF SAID BLOCK AND INSULATED BY SAID BLOCK FROM SAID CORE, SAID FIRST AND SECOND DIODES EACH INCLUDING A CATHODE AND AN ANODE, EACH ANODE BEING ELECTRICALLY CONNECTED TO AN OUTPUT SIDE OF SAID SECONDARY WINDING, A HEAT DISSIPATING METAL JUNCTION PLATE MOUNTED IN ELECTRICAL CONTACT WITH THE CATHODES OF SAID DIODES TO CONNECT SAID DIODES IN SERIES OPPOSITION, SAID METAL JUNCTION PLATE BEING INSULATED FROM SAID ANODES AND SAID CORE BY SAID INSULATING BLOCK AND OPERATING TO DISSIPATE HEAT GENERATED DURING THE OPERATING OF SAID DIODES, TEREMINAL MEANS CONNECTED TO SAID JUNCTION PLATE, A FIRST CONDUCTOR MEANS CONNECTED TO SAID TERMINAL MEANS AND EXTENDING OUTSIDE SAID METAL HOUSING, AND A SECOND CONDUCTOR MEANS CONNECTED TO THE CENTER-TAP OF SAID SECONDARY WINDING AND EXTENDING OUTSIDE SAID METAL HOUSING, SAID FIRST AND SECOND CONDUCTOR MEANS BEING ADAPTED FOR CONNECTION EXTERNALLY OF SAID METAL HOUSING TO THE TERMINALS OF A DIRECT CURRENT LOAD CIRCUIT.