We found this circuit in a 1968 General Electric publication. The circuit uses an SCR of the time, but any modern equivalent can be used. The relay must have contacts that support the horn current.
It is an ideal assembly to be implemented as work by students of digital electronics courses, as...
This oscillator works with voltages from 1 V of alternative energy sources, such as a battery of...
The circuit below was suggested by the Motorola Linear Databook of 1990. The component used is...