Following my post here:
https://forum.pedalpcb.com/threads/muzzle-not-working-multiple-problems.10919/post-113567
I still can't find the problem with the muzzle.
The pedal works. The Gate, Key and Passthrough all work. the signal goes through but there is a very loud 14kHz squeal.
I noticed the problem when there was no cable connected to the input jack, but after some testing I realized that the squeal is all the time there, just louder or quieter. Plugging the whole pedalboard in only makes it worse.
At first I thought the OpAmp was to blame because I tried with an audio probe and even after the first stage I could hear the squeal. I checked the resistors and (I think) they are fine and as I said I have tried several OpAmps. If it is a ground problem, I can't find it, or do you think there is a problem with the THAT4301 module?
This is a very good pedal but with this problem it is unusable I hope someone can help me find the problem. Any help is appreciated. I add some pictures of the build. Thanks.
https://forum.pedalpcb.com/threads/muzzle-not-working-multiple-problems.10919/post-113567
I still can't find the problem with the muzzle.
The pedal works. The Gate, Key and Passthrough all work. the signal goes through but there is a very loud 14kHz squeal.
I noticed the problem when there was no cable connected to the input jack, but after some testing I realized that the squeal is all the time there, just louder or quieter. Plugging the whole pedalboard in only makes it worse.
At first I thought the OpAmp was to blame because I tried with an audio probe and even after the first stage I could hear the squeal. I checked the resistors and (I think) they are fine and as I said I have tried several OpAmps. If it is a ground problem, I can't find it, or do you think there is a problem with the THAT4301 module?
This is a very good pedal but with this problem it is unusable I hope someone can help me find the problem. Any help is appreciated. I add some pictures of the build. Thanks.