I am trying to replicate this Clapp oscillator circuit
with surface mount parts. I built the circuit and am not able to get it to oscillate. I notice that in my SPICE simulations, the circuit is very sensitive to the parallel resistance of the tuning inductor, L1 - below a parallel resistance of 2K, it will oscillate! Does anyone have any experience building this circuit or similar oscillator circuits that could offer me some tips? I would really appreciate it.