This circuit is from a 1968 Electronic Design. The characteristics of the output transformer are not given and the transistors are of the time. The circuit provides a power of a few watts.
This circuit is from an Italian magazine Radio Elettronica of January 1977. The circuit shows how...
This is one of the possible timer configurations with the 555. We found it in October 1986 Radio...
This circuit was found in a 1969 US documentation. It provides a signal that can be externally...