Subject: How do you build a touch lamp?

I have extensively searched the web as well as my local library, and I have 
found no information on how to build your own touch-sensored lamp.  I found 
only two sites which explain how it actually works, but neither provided enough 
detail for me to form my own design conclusions.  I have considered purchasing 
a fairly inexpensive store-bought lamp (~ $35) to disassemble for parts, but 
this seems very cost ineffective since my goal is to build the actual lamp from 
scratch.  Thank you in advance for your time.
Daniel

Re: How do you build a touch lamp?