| 315 / | HD | ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS |
| 246 | DF | PULSATING OR A.C. SUPPLY {10} |
| 260 | DF | .~ Plural cathode and/or anode discharge device load {2} |
| 261 | DF | .~.~ Auxiliary starting electrode-type discharge device load {3} |
| 263 | ![]() | .~.~.~ Inductance or potential surge generator in the auxiliary electrode circuit |