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.
We found this circuit in an American 1980s documentation. The circuit uses a piezoelectric transducer...
We found this circuit in December 1986, Radio Electronics magazine. It uses 3 inverters and has...
This circuit is from 1997 Linear Technology Applications. The circuit uses common components at...