Found in a Motorola manual from the 1980s, this circuit uses components from the era. The circuit controls lamps from 5 to 48 W from 12 to 14 V.
In the figure we have the basic configuration of an inverter transconductance amplifier, as...
This is one of the possible receivers for the CB4582E transmitter. The circuit is from 1995...
This circuit that uses only transistors indicates when the voltage in the circuit has the voltage...