Found in documentation from the 1980s, this circuit can generate signals between 6 and 8 MHz. The frequency can be slightly varied in the setting. FET is a general-purpose type.
This circuit was found in Radio Electronics from the 90s. The components used are common, and the...
In the figure we show a circuit in which the output voltage of a 78XX voltage regulator is...
This 13.8 V power supply with 10 A was found in a 1997 documentation. It is intended for the...