This circuit uses an 18 MHz crystal to generate 36 MHz signals. We found it in an 80's documentation. The circuit has an input for frequency modulation.
This circuit is from a publication in 1972, originally made with germanium transistors, but can be...
This circuit is from an April 2000 Poptronics. The magazine no longer exists, but the circuit can...
The circuit shown in the figure is suggested by Maxim (www.maxim-ic.com) and makes use of the...