This General Electric circuit, in a documentation from the 1960s, allows the use of high resistance resistive sensors with unijunction transistors in a relaxation oscillator.
Suggested by National Semiconductor in documentation from the 90s, this circuit uses a switched...
Any FET can be used on this 80's circuit. Power can be supplied with batteries. The output is...
This circuit was found in an Electronics World magazine from 1990. The circuit can be mounted...