![]() So for three to four songs at Open Mic, this works great. Most of the time I only bring the Acoustic Electric, and my big mouth, but often I like to introduce a pedal, Looper, Beat Buddy or Mosiac 12 string effect and some people use a harmonizer, then taking time to find an AC source on stage, or having to bring an extension chord, is too much bother, so I went to Radio Shack, and bought the necessary 8 AA or 8 AAA battery holder and power connector for the Pedal,(Negative in the center) and made a portable supply, which in the case of the Beat Buddy, did over 2 Three Hour Solo Gigs using just the 8 aaa pack with no issues. In between paying solo gigs, I like to do Open Mic. This AC not filtered being introduced in your signal stream can cause Noise if the pedal is not designed to filter it out. You can purchase one for $25-$135 that is a pure DC Source, but if you look at the output with an oscilloscope, vs what is on the battery terminal you will see what I mean. These 9vdc power supplies are really not what you would call quality. AC Ripple on the DC output into the Pedal. There are a number of reasons to use a fresh battery/battery pack VS the Plug into the AC/wall adapter. You owe it to the earth to stop using them.
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