Kliche Mini SE

[MauroRibeiroGtr]

Hi, everyone
I recently mounted the Kliche Mini SE and I'm having a constant and high-pitched noise along with the guitar signal when the pedal is on.
Any tips on which part of the circuit I need to investigate?

 

[BuddytheReow]

SOunds like grounding issues. It may go away on its own once it's boxed up.

 

[Nostradoomus]

Yeah see if boxing it does anything, if not try another 1044 chip.

 

[jimilee]

What kind of high pitched noise, like heterodyning from a charge pump or oscillation?

 

[Robert]

It may or may not be related to your issue (the charge pump is more likely), but those do not appear to be genuine TL072's.

 

[MauroRibeiroGtr]

Yeah see if boxing it does anything, if not try another 1044 chip.

I’ve already change the ICs and the noise didn’t change

 

[MauroRibeiroGtr]

What kind of high pitched noise, like heterodyning from a charge pump or oscillation?

The noise oscillates intermittently. It lasts a few seconds and mixes with the tone that starts to sounds very bad, like a fuzz with out of battery

 

[danwojaz]

@MauroRibeiroGtr Did you get the TL072 from Tayda? I used to get the same issue in some of my pedals. Then I ordered some TL072s from mouser, and swapped them. The noise in all of my pedals went away. Since then, I dont order any Opamps, transistors, or diodes from Tayda.

 

[MauroRibeiroGtr]

I bought it from a local supplier. I've had some noisy ICs, but in general they work well.