This circuit is from the 1983 Intersil Databook. The circuit has an A / D converter for display of 4 and a half digits being powered by a voltage of 9 V.
The frequency of this circuit is determined by the 1 uF capacitors. These components can be...
The figure shows how to increase the output current to about 50 mA of an operational amplifier. The...
This circuit converts the 12 to 13.6 V of a battery into 6 Vwith current up to 1 A. We can use it...