Step 16Finishing Up
Install the tube, if you haven't done so already.
Add rubber feet to the bottom if you like, to prevent the pedal from sliding around on the ground.
Now plug it in and test it! Fiddle with the Drive and Volume knobs to make sure they do what they're supposed to. Test the Bypass switch to make sure it, um, bypasses. Listen for noise or hum from the output. If it's above an acceptable level, look for grounding problems or change your adapter. I found that a smaller switching-type AC adapter introduced far less hum into the output than a regular bulky transformer type.
When everything works perfectly, be sure to show off your new home-built tube based effects pedal, emphasizing how cool you are because you have one and they don't. Before they get too jealous, point them towards this Instructable so they can make one one their own. ;)
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