| 摘要 |
<p>A plurality of resistors are successively connected between the junctions of a plurality of series-connected photoflash lamps and semiconductor switch devices of a sequential flashing circuit. The resistors function to provide leakage current paths for the semiconductor switch devices to insure the flashing of the lamps in a desired predetermined order even though one or more of the lamp circuits may be open-circuited.</p> |
