Tell us about yourself!
You could try an low ohm speaker, maybe lower than 8 Ohm
Arduino MIDI Chiptune Synthesizer
Make a simple AM transmitter
SIMPLEST AUDIO AMPLIFIER
Can it be used to charge the capacitor enough for a coilgun?
Night vison eyedrops!
Make Your Own DIY Battery
10 Breadboard Projects For Beginners
Fan Powered by any Heat Source
The poor man's soldering iron
How to charge a super capacitor using a hand crank dynamo
Laser Tripwire Alarm
GUIDE TO LED PROJECTS
Pocket-Size Power Supply
Simple Electronic Piano with 555 timer in CD Case
2n3055 flyback transformer driver for beginners
re(updated) Simple flyback driver
Motorbike noises for grown ups (remote controlled).
Make a digital thermometer
Reverse Joule Thief
Portable Led Game System
Quick & Easy RGB-LED Tester
An LED Dice using a PIC 16F84 (or 16F88)
555 AM Transmitter
How to Build A Speaker
Altoids tin speaker
Altoids tin audio mixer
Building a Portable (Relatively) Self Contained Speaker System
Coffee Cup Speaker
HDDJ: Turning an old hard disk drive into a rotary input device
Make your own professional record cleaning machine for less than $80 and save up to $3000 and more.
Altoids Tin 1/8" Stereo Mixer
Graphite-Controlled Mono Synth
DIY Audio Mixer
Pocket 10 watt amplifier
Touch Activated Finger Led (Glove Optional)