Starting Electronics Needs Your Help!
It is that time of the year when we need to pay for web hosting and buy new components and equipment for new tutorials. You can help by making a donation. Contribute to this website by clicking the Donate button. The total will be updated once daily. (You may need to clear your browser cache to see the updates.)
Target Amount: $2000
Amount Raised: $1960
Top Donor: C.C. $100
Created on: 30 July 2012
The loudspeaker used in the tutorials is a small 8 ohm loudspeaker rated at 0.25W (250mW), but any 8 ohm loudspeaker should do.
You can buy a speaker, but help to recycle by finding an old speaker in unused or broken equipment. This type of loudspeaker can be obtained from an old PC case or an old headphone set.
Larger speakers can be obtained from an old radio or TV.
The symbol used for a loudspeaker in circuit diagrams is shown below: