1) What are you guys doing to combat the clock noise? Can I swap out the "level" pot with a different value to maybe restrict the overall level? The noise only gets bad when the level pot is at 75%+
If you want to lower the maximum volume of the delay, then trace from the wiper of the level pot , the signal goes through a 100n capacitor and then a 10k resistor, sorry I don't know which one it is on Taylor's board. If you make the 10k resistor bigger that will lower the maximum volume of the delay. Changing the value of the pot won't do very much.
2) Is there a way to clean up the repeats, or is it a limitation of the PT2399? I know it's intended to be a low-fi effect but wondering oif that's a result of the circuit or chip.
The repeats should be fairly clean at short times on longer times it gets a bit muddy, but that's mostly a limitation of the chip. You need to filter out more highs otherwise the noise gets really bad.
3) anyone experience this: pedal will pass dry signal in both modes (bypass and on) but I get no repeats until i unplug/re-plug the power?
I haven't heard of this problem before. I know if you make the resistance between pin 6 and ground too small the chip can do this, but I've never had that problem with either of mine. If you set the delay time somewhere in the middle before you turn the pedal on does that stop it doing it?
With what you've said about the noise problem as well as this I wonder if you have a bad PT2399 or a bad connection somewhere around pin 6.