1   Quaker Oats box (4" Diameter size)

1   Mounting Board (Wood)

1   100 foot spool of #24 or #22 solid plastic insulated wire 
      Suppliers:
      Ocean State Electronics   Part No. HWS24BK-100
      Radio Shack    278-1224  (also in store)

1   Germanium Diode 1n34, 1n34a, 1n60 etc.
      Suppliers:
      Ocean State Electronics   Part No. 1N34A
      Antiques Electronic Supplies   P-Q972 
      Dan's Small Parts and Kits
      Computer Controlled Automation

1   47K resistor 1/4 or 1/2 watt
      Suppliers:
      Ocean State Electronics   Part No. RQ47K
      Antiques Electronic Supplies   R-A47K
      Radio Shack    271-1342  (also in store)
      Dan's Small Parts and Kits

1   alligator clip
     Suppliers:
      Ocean State Electronics   Part No. 269B
      Antiques Electronic Supplies   S-H301-103

4   Fahnestock Clips (You could use a machine screw up through the bottom of the board
     and a nut. Then a knurled nut or another nut to tighten the wires down.
      Suppliers:
      Ocean State Electronics   Part No. 2090
      Antiques Electronic Supplies   S-H11-4034
 

All the parts can be purchased at Ocean State Electronics

Take the Quaker Oats container (empty of coarse) and on the open side, come down about a 1/2" and poke two holes (careful). Poke the wire through the right hole and back through the second hole like shown below at the top. Pull about a foot of wire out. On the inside of the oats box, place a piece of tape on the wire and the two holes. This will keep the wire from slipping out.

Wrap 5 turns of wire around the oats box and make a "tap". See the illustration below on how to make a tap. Twist the wire a couple of times and remove the insulation at the twist (see below).

Continue making wraps and every 5 turns make a tap until you get to 40 turns.

At 40 turns, poke two holes next to the last turn of wire. Cut the wire off the spool of extra wire about a foot long. Poke the wire into the first hole and back out the second hole. Place a piece of tape on the inside like on the top. This will keep the wire tight on the oats box.

You now have your coil wound like in the illustration below.
 

The ground can be made by connecting to a water pipe, or to a metal rod pounded into the ground (at least 2 feet deep).

Hook it all up and put the alligator clip somewhere in the middle. You should hear something!