LED Sequencer (CB21711E)

This is one of the many versions of this circuit that appear on this site. We got it from an internet documentation.

Transducer amplifier (CB9064E)
This circuit applies to other operational ones, other than the one indicated. The formulas next to the...
Regulated AC DC Converter (CB465)
This circuit can source 3 to 12 V with currents up to 500 mA depending only on the transformer....
Motor reversal (CB22082E)
This relay circuit is intended for reversing small DC motors. The circuit is from an old...