Quote from: madbean on November 07, 2016, 06:35:33 PM
Wire acting as an antenna for LFO ticking is a very common problem. What you did is exactly what I would have suggested- move it out of the way or re-route it away from the IC.
The motorboating can be a problem with PT2399 when it is pushed over 500ms (remembering that these chips are only spec'd for 300ms of delay). A common mod for the Dirtbaby is to increase the filter cap at the delay output from 4n7 to 47n (C13). This will darken the delay some but it should quiet down the motoring quite a bit.
On the next order of DB boards I'm going to add an additional filter at that spot to make it more of a permanent mod.
thanks for the info Brian!!
I'll try a 47n in C13. I like a darker delay anyway so this sounds like a nice modification to pursue.