The circuit shown is used to reset TTL logic when power is established. The circuit uses a 7413 and must be powered by 5 V. The circuit can be adapted to work with microcontrolled applications.
This circuit is from a 1979 documentation. The critical component is the CA3130 operational...
This circuit can be used with 3 receivers and is intended for low frequencies (medium wave range). We...
This circuit shows how to control a TTL logic gate with a phototransistor. The phototransistor supports an...