Found in the April 1998 Electronics Now magazine, this circuit controls loads that rely on the power transistor. The circuit uses a single push button for control.
We found this amplifier for hearing aids or hearing aid using only transistors in a documentation from the...
Found in an English publication from 1977, this circuit uses only 1 LED. Unlit means heads and lit...
We found this circuit in an old documentation. The indicated solenoid is of low current type,...