This circuit is from a 1968s Motorola documentation. The load can range from 10 to 100ohm and the transistor supports a modern equivalent such as 2N2222 or BD135.
We find this circuit in an American 1980s documentation. The unijunction transistor may be the...
We found this circuit in an Electronics World of 1967. The components are of the time and...
This simple circuit can be used to power a simple communication system using ordinary telephones....