Nick wrote on Sep 27th, 2006, 8:25am:I have noticed that below an amplitude value of the isin the oscillator does not start up, or starts up but fails to keep the oscillation.
if you're using traponly and the LC oscillator starts but then the amplitude dies away, then i guess you don;t have enough negative resistance in your active core to overcome losses in your tank (ie you don't have a net negative resistance). you will find if you increase your negative resistance the oscillator will start easier in simulation (when given the current kick), as in real life. using gear or euler could kill the oscillation due to numerical damping.
as to the size of the kick, as oscillators start on noise, you could give it a kick in the order of the size of the noise you expect to give a better estimate of start-up time. although i normally give it just a big kick!
(aside: i think there is a fairly new transient noise function which could do this for you? i haven;t used it myself but might be worth looking into ?)