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 was found in the Intersil Databook. The integrated circuit used is uncommon today. R2 sets...
We find this circuit in a radio amateur publication of 1977. Its purpose is to measure the...
This circuit that can be used as a three-tone domestic bell has a traditional configuration that...