This low current source without a transformer is intended for applications where insulation is not important. The circuit has a 110 V (120 V) input and was found in old American documentation.
The interruption of the light incident on the phototransistor causes the trip of this circuit that can...
This low voltage circuit was found in Popular Electronics. It is intended to power devices that use...
With this circuit it is possible to use the same antenna to receive signals from conventional...