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 Post subject: Wah Noise *RESOLVED*
PostPosted: Sat Feb 04, 2023 5:06 pm 
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Posts: 10
I just finished installing a drop in wah kit in a crybaby enclosure.

I made the pedal for my guitar instructor. He frequently gigs in venues with small stages, so he's real careful about the size of his stage setup. He asked me if I could make a wah pedal with Inst and Amp jacks in the front of the pedal, and power on the right hand side to preserve as much stage space as possible. All his other pedals have input and output jacks in the front.

A long time ago, he had a wah pedal that used a pot with an ICAR taper just like this one, so he's really like this BYOC design.

When I plug it in and connect a guitar and amp I get lots of noise when the circuit is engaged. Activating the treadle makes the wah sound with the noise. It's quiet in bypass mode.

Picture below shows the interior of the pedal.

Can anyone suggest how I can fix the noise?

Attachment:
WahPedalNoise.png
WahPedalNoise.png [ 552.98 KiB | Viewed 586 times ]

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 Post subject: Re: Wah Noise
PostPosted: Sat Feb 04, 2023 6:56 pm 
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Joined: Tue Jan 02, 2007 1:24 pm
Posts: 16196
Location: Albany, NY
Do you have a metal backplate for the pedal?

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 Post subject: Re: Wah Noise
PostPosted: Sat Feb 04, 2023 7:40 pm 
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Yes, I installed it and tried it again. Still makes the noise.

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 Post subject: Re: Wah Noise
PostPosted: Sat Feb 04, 2023 8:16 pm 
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Location: Albany, NY
What are you using for power? We see a lot of noise problems caused by power supplies here. A sure way to test for that is to try powering the pedal with a 9V battery.

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

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


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 Post subject: Re: Wah Noise
PostPosted: Sun Feb 05, 2023 12:01 pm 
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Posts: 10
I tried a 9 volt battery and that fixed it. Bought a Boss wall wart and that works too.

Thanks for the help.

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 Post subject: Re: Wah Noise
PostPosted: Sun Feb 05, 2023 12:21 pm 
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Location: Albany, NY
Great! I'll mark this one "resolved."

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


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 Post subject: Re: Wah Noise *RESOLVED*
PostPosted: Sun Feb 05, 2023 3:44 pm 
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Location: Soddy Daisy,TN
That’s fantastic, I didn’t realize it had too mount jacks.


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