We found this circuit in an old American documentation. SCRs can be modern equivalent types. The transformer has a 5 A current, according to the SCRs.
The presented project is simple, but efficient in medium distance irrigation. In this circuit, the time...
This dual time constant circuit was found in the October 1987 issue of Radio Electronics magazine. The...
This is a dimmer version for incandescent lamps (do not use any other type) from an old...