This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can generate 20 to 100 MHz signals operating at the fifth harmonic of the crystal.
The author has many books he had written in Eglish (See the Biography) published by famous...
This circuit is from an old publication of the 70's. It can be implemented with modern transistors like the...
This configuration often addressed on this site is from a 2000 documentation. The circuit can be...