@HamRadio
This one generates sine waveform at frequency is about 1MHz. It was kinda hard to make this circuirt work at high frequencies so it only started with sufficiently large values of L and C of the oscillating countour at the right-bottom diagram part corresponding to frequency in order of 1KHz. Then slowly (adiabatically) changing L, C and time scaling it was possible to achieve stable signal generation for greater frequency values.
