Potato Cakes
Well-known member
Hello, everyone,
Some time ago I shared my struggles with using switching power supplies with some pro audio circuits I was building and how in the end it was a capacitor multiplier circuit that was the answer to removing the high levels of noise and oscillation from the audio path. So now I set out to build a couple of specific 9V and 12V power supplies to use with some guitar effects pedals that I'm using as studio effects since they sound really good and I can control them either via a USB editor or MIDI. Using the same filtering, I get a constant tone with most of them. I did a comparison with an old Danelectro branded wall wart and that seems to take care of the noise, but that is only for one pedal and that particular power supply does not have enough draw for some of the pedals being used. My question is what new thing am I now missing when filtering and SMPS to use with unbalanced audio gear like effects pedals?
Thanks!
Paul
Some time ago I shared my struggles with using switching power supplies with some pro audio circuits I was building and how in the end it was a capacitor multiplier circuit that was the answer to removing the high levels of noise and oscillation from the audio path. So now I set out to build a couple of specific 9V and 12V power supplies to use with some guitar effects pedals that I'm using as studio effects since they sound really good and I can control them either via a USB editor or MIDI. Using the same filtering, I get a constant tone with most of them. I did a comparison with an old Danelectro branded wall wart and that seems to take care of the noise, but that is only for one pedal and that particular power supply does not have enough draw for some of the pedals being used. My question is what new thing am I now missing when filtering and SMPS to use with unbalanced audio gear like effects pedals?
Thanks!
Paul