Hello a simple crystal pierce oscillator is shown here **broken link removed**
Since the crystal is used as a feedback element, I was wondering if it can be replaced by an LC combination in order to make a vfo.
I have not seen any such circuits on the net.
There is a family of oscillators which use LC resonance.
These are Colpitts, Clapp, Hartley.
The crystal is not replaced pin-for-pin with an inductor-capacitor pair, if that's what you're looking for. The types mentioned above arrange the LC differently, and have more than one inductor or capacitor.
Thank you! I will try it, probably the fet version.
Have you got any clue about it's stability and frequency coverage without any components alterations apart from the LC?