This circuit is from 1999 documentation. The integrated circuit used is not very common today. Both transistors are used if the motor current is greater than 500 mA.
This circuit behaves as a voltage controlled resistor and can serve as a small load. The circuit is...
Found in old American documentation, this circuit can divide the frequency of a signal by 2 or 3...
This circuit was obtained in Motorola documentation from 1969. The transistors are from the time...