This 1968 Hughes circuit uses period components and operates at 8 Hz. Current equivalent components may be employed. Note the high supply voltage.
Shunt-type regulators are connected in parallel with the load by diverting the current to behave as a...
This circuit is from an old American amateur radio manual. The circuit shows how to use a Varicap...
This circuit was found in old FET documentation, but it applies to any modern common JFET. The...