I'm new to analog electronics (although I've been using uCs for a while) and I'm trying to build a really simple RC oscillator, a Hartley or a Colpitts one. All the schematics I've found on the web or in books are using complex and additionnal components (like 4 pins MOSFETS, JFETS, transformers...). The two or three models that I've tried to build weren't oscillating at all. I want to keep it simple to be able to fully understand what's happening (otherwise I'd have used somme xtal or IC).
Do you know some simple LC oscillator schematics using standard components that would simply oscillate at few MHz ?