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.
This configuration for latching automation using relays was found in Radio Electronics magazine from...
This circuit was found in Motorola documentation from the 1980s. PUTs are not common components...
This circuit is based on a regulator component that consists of a transistor and zener in the same...