Found in an American publication from 1968, this circuit generates pulses at a rate of 2,500 per second. The transistor can be replaced by a modern equivalent.
Found in a 1964 Electronic Design, this circuit generates 1 A pulses with durations from 100 us to...
This low-current control circuit has a lamp as a load, but can have other types of devices, such...
This circuit was found in an old American optoelectronics manual. The circuit makes use of an...