Found in a 1965 Electronic Design, this high voltage circuit uses period transistors. Its purpose was to excite Nixie display tubes common at the time.
This circuit was obtained from an English magazine from 1976. The transformer has a current of 1.5...
We found this circuit in a 1974 documentation. The NPN transistor can be the BD135 and the PNP the...
In this 1964 Electronic Design circuit, the frequency division of the signal is done according to the...