Using only discrete components, this circuit can control loads up to 8 kW. SCRs should be appropriate and equipped with large heat sinks.
This circuit is from 1976 Radio Shack documentation. It detects when rapid variations in the light...
This circuit activates a garage door by the car headlights car or a lantern. The circuit is from a...
The presented circuit generates a sinusoidal signal of frequency given by R and C, presenting an...