363 / | HD | ELECTRIC POWER CONVERSION SYSTEMS |
13 | DF | CURRENT CONVERSION {25} |
15 | DF | .~ Including D.C.-A.C.-D.C. converter {5} |
16 | DF | .~.~ Having transistorized inverter {5} |
22 | DF | .~.~.~ Double ended (i.e., push-pull) self oscillating tye {1} |
23 | .~.~.~.~ With automatic control of the magnitude of the output voltage or current |