Build Your Own Clone Message Board

I just completed my first build (a classic overdrive), and I'm getting a high pitched hissing noise when the pedal is on. The noise gets louder when I turn up the volume or gain, and the noise darkens when I turn the tone knob down. I used the "more bass" mod in the build. It's not from my guitar, because the noise is not affected by my guitar's volume knob. The noise seems to get quieter when I actually play my guitar.

From what I've gathered online, it sounds like it might be a grounding issue, and I've checked all of my solder joints 2 or 3 times now.

Thanks in advance for any help

Try running the pedal with a 9V battery and see if that makes a difference. We find a lot of noise issues related to the power supply used.

_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)

My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2

That fixed the issue completely. Is there anything I can do to remove the hissing while using a power supply (either in the circuit or outside the circuit)? The power supply is a D'addario power supply.

The pedal sounds great by the way, and the instructions were easy to follow! Already thinking about the next pedal to build

Assuming that you don't want to run the pedal on a battery all the time, your best bet is to invest in a better quality power supply. The best ones are the power "bricks" with multiple fully isolated outputs like those made by Voodoo Lab, Strymon, MXR and others. You can see a bunch of them HERE. The downside is price, since these run $100 and up. But if you plan to run multiple pedals on a pedalboard, they're worth the investment IMO.

If you just don't want to spend that kind of money on a P/S, check out the Boss PSA-120S supply: https://www.amazon.com/R-O-L-PSA-120S-A ... B0012BPMHW In my experience, it's as good as any other single-output P/S on the market. And make sure you get the real thing, not one of the many cheap imitations.

Also, we recommend staying away from the Truetone 1 SPOT Slim P/S, even though it's a very popular model. We hear of a lot of noise problems with that one here on the forum.

_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)

My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2

The BOSS PSA-120S is as cheap as it gets while still being a quality, filtered and regulated power supply. Anything cheaper is going to be suspect. The 1-Spot was the biggest offender, but now it seems lots of companies are offering cheap $19.99 power supplies similar to the 1-Spot. Even Strymon has one now.

_________________
*patience is a virtue*

Please do not PM me. email is prefered. keith@buildyourownclone.com