5V Powwr Supply Crowbar protection MC3425 (CB14530E)

This circuit is suggested by Motorola in its 1990 Linear Databook. The integrated circuit is no longer common in the market.

Robot Follow Line (CB20431E)
Here is a very simple robot circuit that follows the line driven by a small 3 V sevomotor that...
LM380 Gain 200 Amplifier (CB14171E)
This circuit, which provides a power of up to 3.5 W, can be supplied with voltages from 9 to 14 V....
Listening Transmitter Via Power Grid (CB19325E)
This circuit transmits the signal taken from a telephone line to a receiver placed nearby (up to a...