power supply

Fig. A

When power cables and signal paths tangle, the results can be noisy. Here are some easy fixes.

In my previous State of the Stomp ["The Shocking Truth About Ground Loops," October 2021], I discussed how ground loops can be formed between the amplifiers in a multiple amp setup, and how to safely address them with an isolation transformer. As a brief reminder, a ground loop is created whenever two electrical circuits that theoretically have the same ground potential actually have a non-zero potential between them in practice, and that often results in hums and buzzes that are harmonically related to the mains voltage frequency in your part of the world.

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The power supply features eight DC outputs and one standard USB output.

Shenzhen, China (June 15, 2018) -- Joyo Audio has launched the new JP-05 power supply, designed to offer musicians the possibility to power different power assumption pedals and mobile devices.

JP-05 has eight DC outputs and one standard USB output, one of the eight outputs can be switched between 9V, 12V, and 18V for the odd pedals in your collection that just want a little bit more voltage. The 5V USB output enables you to load your cell phone, iPad and other portable devices.

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