I got some great, patient advice re this project about a year ago. It's a phase meter circuit that looks at the phase on an antenna with 1 kW on it at 137khz and the circuity drives a variometer outside to bring the antenna back into phase as the weather or whatever changes. With advice I got it working quite well, but what I have found is it's overly sensitive. A snowflake circuit By this I mean it hunts about as the wind blows the antenna. This is annoying and wearing out the variometer and motor drive. It is stable without minor outside environment changes though. Is there a way to make it less sensitive to small phase changes please? The circuit for the phase meter has no meter installed, but a 150 Ohm resistor in its place, still retaining the series 180 Ohm resistor as well. I also, on advice, added a 0.1uF across the output socket of the (separately, metal boxed) phase circuit, and floated its ground to match that of the motor drive circuit's floating ground. I did this with a 0.1uF and 470pF in parallel in breaking the ground where the ground symbol is shown on phase.jpg. I don't think this is the issue, it seems more likely I need to make the circuit less "accurate" so it takes more of a phase change to actuate the motor. I do not know if it's easily done, nor how to do it though. Thanks.