Found in Motorola documentation from the 1970s, the circuit presented uses a component from the era that is not common today. The characteristics of the coils are given next to the diagram.
This circuit is from an old publication, from 1992, being indicated to test the old joysticks of...
This circuit simulates lightning using a small white lux type fluorescent lamp. The circuit is...
The frequency of this astable multivibrator depends not only on the capacitors, but also on the...