Found in an RF Design from the 90's this circuit is intended for crystals of less than 1 MHz. Transistors are types of general use today.
A configuration that can be used to do frequency division, and that uses only a current amplifier, is...
This circuit with 1W of output was found in a Mullard manual from 1960. The consumption is low and...
This is a circuit that we use very often in our projects, and it also appears in many technical...