How do you make a loudspeaker?

Answer 1

a loud speaker consist of the following; coil, soft iron core, diaphragm and a magnet. To make a simply experimental loudspeaker, attach a strong magnet on one end of a very short round soft iron core of at least 5-8 inches wide and 0.5 inch tall. now find a little tick paper and wind round the soft iron, making sure there is a little space between the paper and the round magnet attched to soft iron. follow this method for easy pratices. put the round magnet on a table and insert the soft iron core in the center of the magnet. now wind the paper round the soft iron inserted in the magnet. after the paper has been wounded round the iron, gently pull off the paper and make sure that it's present shape is not affected. now wind round the paper a very long tiny coiled wire that may not be up to 1 diametre in tickness depending on your project living the two ends of the coil to be out after winding. remenber, make sure the shape of the paper as it is removed from the soft iron is not affected. put it back round the soft iron, making sure that all the wounded coil entered in the center of the magnet. now connect a small volt rated battey like 1.5v or 3v to the two ends of the coil. listen attentively while connecting the batteries. what did you hear? a kind of cracking sound i guess.