This regulator circuit was found in the June 1984 issue of Radio Electronics magazine. The LM11 is a power operator. Voltage selection is done by a switch,
This timebase was found in a European 1980s documentation. The circuit uses well-known components...
We found this circuit in an old documentation. What it does is flash two LEDs when night falls or when...
I found this circuit in a 1986 English magazine. It can still be easily assembled, exchanging Q1...