Hello All! This is my first post. I am a relative novice to electrical work. I have experience wiring my own guitars and putting together effects pedal kits, but that is essentially the end of it. So, I have a project that I would like to use a small electric motor for. It is a single string electric guitar type device designed to produce one note in a droning fashion. I'd like to use the motor to spin a wheel that will vibrate the string and produce sound through the pickup and out to an amp. I don't think that it needs to be particularly powerful, so I am hoping for a recommendation that allows for a 9v battery as a power source. Ideally, I can pickup what I need at a Radioshack (USA, Gainesville, FL) and knock it out this weekend for an upcoming performance. I would also like to be able to adjust the speed, so I am thinking maybe a linear potentiometer would work? I apologize for my lack of knowledge and thank you all for your advice in advance! Thanks! BONUS POINTS for an easy EBow project that will get a nice drone going!

Greetings, As shown in the photograph, this breaker in my panel has two switches on it. One will kill power to an outlet in the garage and the other to devices upstairs. Both are labeled 20A. Does this mean that the outlet in the garage can be considered a 'dedicated' 20A breaker? Or is each breaker 10A and add up to 20A between them? Thanks!