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    Hi Edwin, no, I think I made a mistake. My...

    Hi Edwin, no, I think I made a mistake. My previous post was on a phone via email link and I thought the comment was directed at me (misread, my fault = apologies), but I think they were intended for...
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    Hi Edwin, thanks for the feedback. I've tried to...

    Hi Edwin, thanks for the feedback. I've tried to answer all your questions comments below.

    "In the schematic I see failrly low values of capacitors on the outputs of the voltage regulators,...
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    I designed a high-quality, low-noise audio board...

    I designed a high-quality, low-noise audio board for use with guitar and Teensy. The schematic is freely available in the boards documentation. You can use that as a reference.

    Teensy Guitar Audio...
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    In case anyone is examining the schematic, the...

    In case anyone is examining the schematic, the Teensy actually uses an LDO to generate it's 3.3V, but since that supply is feeding all the digital circuits on the Teensy, the loads induce noise on...
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    Most guitar pedals don't need to have resilient...

    Most guitar pedals don't need to have resilient power supplies because most have no digital circuits inside them. When powered by batteries, you get lowest PSU noise because batteries have no noise...
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    Ground loops tend to pick up 60Hz hum from the...

    Ground loops tend to pick up 60Hz hum from the mains, lighting, nearby refrigerators, etc. They are less likely to pick up digital interference. Digital interference is picked up by analog wires...
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    I've created a very low-noise Teensy Audio Shield...

    I've created a very low-noise Teensy Audio Shield so I can assure you it can be done. Take a look here for full details, including the schematic: TGA Pro

    For starters with PJRC Audio Board, you...
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