This circuit was suggested by National Semiconductor in one of its manuals. The LM108 integrated circuit, uncommon nowadays, can be replaced by an equivalent. The power supply must be symmetrical.
This circuit was obtained in an old magazine from the 1970s. The circuit can still be assembled with...
This power oscillator uses an LM380 amplifier. We found it in old English documentation. The C3...
In the figure we show a simple way to use a zener diode to protect a load against overvoltage. The...