Found in a Popular Electronics from the 1990s, this circuit monitors the voltage of a power supply or battery. The trigger voltage is adjusted with a potentiometer.
This amplifier can be used for public-address or other applications. Three transistors of the time...
We found this transistorized AM receiver of the regenerative type of excellent quality in a...
The division for an odd number needs the aid of some external logic in addition to the use of the...