For this you will need:
- A Box (small, chunky and sturdy is best)
- A wooden stick of some kind (could be a mop handle, dowel, again anything sturdy) All i happened to have was some bamboo from grandmas garden.
- 1 long bolt with 2 nuts to fit it
- 1 piezo transducer (I think in the states you usually buy a buzzer and take it apart, here in the UK we have maplins who sell them naked - http://www.maplin.co.uk/piezo-transducers-3202)
- 1 1/4 inch mono chassis socket (again, maplins comes in useful http://www.maplin.co.uk/1-4-mono-chassis-socket-1252)
- 1 piece of wire (guitar/banjo string would be ideal, if you don't have that you can strip a small length of washing line, they usually have a good width wire inside the plastic core)
- 1 piece of very hard wire, or a nail, bent into a figure of 8. or a washer with a hole or a small L-bracket would suffice. as long as it can fit onto your long bolt. (i'll explain more in step 6)
- 1 small piece of scrap wood to act as a bridge
Red/black to either pin, it makes no difference.
You have now made the easiest contact mic set-up you're likely to find anywhere.
Cut out the hole and insert/screw tight the chassis socket.
Head back inside the box and tape the piezo disc onto the surface of the box you want to be your front.
this is where we will thread our wire into laters.