The power supply for this 1972 circuit must be symmetrical and the BC549 transistors. Care with the layout is important to avoid capturing tinnitus.
The presented project is simple, but efficient in medium distance irrigation. In this circuit, the time...
The circuit presented was found in a documentation from the 1950s, generating a sinusoidal signal...
We found this circuit in a 1982 documentation. The circuit drives a relay when the sensors are...