This circuit was found in documentation from the 1980s. The circuit uses several components of the time, which are uncommon today. We must not supply it with a transformerless power supply.
This circuit provides signals in phase with the input and with the phase inverted. The circuit was...
This is one of the many applications of the 555. We found it in the November 1992 Radio...
The circuit presented was found in a Japanese magazine in 1973. The circuit uses transistors of...