Metal detector?

Question

What are some parts that are needed to be build a metal detector! Coz I want to make one, homemade!

Answer 1

well one of the main bits is a stimulous chromometer and u could use pvc for the stem! and can i have the best question?

Answer 2

Wire, electronic components, battery, speaker, audio amplifier, oscillator circuit, IC sockets, capacitors, soldering iron, schematics, #40 copper wire, handle, wand, loop.  

  You can buy one easier, better and cheaper. White's has spent 40 years developing the industry and have done a very good job of being at the fore front of the industry.