Check out this page on "How Stuff Works":
http://electronics.howstuffworks.com/oscillator.htm
This is a great website, featuring lots of articles about how everyday things work. A quick search turned up tutorials on capacitors, oscillators, resistors, etc. If you're new to theremin construction, this is a good place to read up on the basics.
http://electronics.howstuffworks.com/oscillator.htm
This is a great website, featuring lots of articles about how everyday things work. A quick search turned up tutorials on capacitors, oscillators, resistors, etc. If you're new to theremin construction, this is a good place to read up on the basics.