Seabed Delay Motorboating

[Jb83]

Hi,
New member here and just finished up the Seabed. When engaged, I’m getting a motorboating noise that changes in intensity/volume when I tweak the knobs. Any ideas?

 

[jimilee]

Hi,
New member here and just finished up the Seabed. When engaged, I’m getting a motorboating noise that changes in intensity/volume when I tweak the knobs. Any ideas?
View attachment 95324

Have you tried any other pt2399 chips? Thats one of the pitfalls of that chip, you can get some bad ones.

 

[jessenator]

Check your solder joints to make sure you don't have any cold joints or bridges?

Any pics of the solder side? Though that might be difficult with it being boxed and the pots in.

 

[Jb83]

I unboxed everything, reflowed all the joints, built a signal tracer, and we’re all good now! This may be my new favorite delay. I even prefer it to my dm-2 waza!