This Engineer's Mini Notebook features more than two dozen 555 timer circuits that you can build, 50 operational amplifier (OpAmp) circuits, and a wide range of optoelectronic circuits and projects, including many LED and lightwave circuits...

The Black & Decker RTX-6 2 Amp 3-Speed Rotary Tool offers superior power and versatility, allowing you to perform a wide variety of jobs with maximum convenience. Its high-torque 2 Amp motor gives you enough power to complete jobs faster than most other tools on the market and without getting bogged down, and with three adjustable speeds (12,000/24,000/30,000 RPM) this tool delivers precision work...

Build audio projects that produce great sound for far less than they cost in the store, with audio hobbyists' favorite writer Randy Slone. In "The Audiophile's Project Sourcebook", Slone gives you - clear, illustrated schematics and instructions for high-quality, high-power electronic audio components that you can build at home; carefully constructed designs for virtually all standard high-end audio projects, backed by an author who answers his email; 8 power-amp designs that suit virtually any need; instructions for making your own inexpensive testing equipment; comprehensible explanations of the electronics at work in the projects you want to construct, spiced with humor and insight into the electronics hobbyist's process; and, complete parts lists...

CUTLER HAMMER" TANDEM SINGLE POLE CIRCUIT BREAKER *3/4" *20/20 amp, 120 vac *2-single pole *Non-interchangeable *10,000 AIR *Switch indicator *Circuit limiting *Protects wire from overheating and current overload *Plug-in *Fits Cutler-Hammer CH Classic Panels only *Standard overload, short circuit protection in Cutler- Hammer CH Panels only *For CTL (circuit limiting) load centers with bus bar slots *Tandem breakers offer two circuit protection while only requiring one space in a load center *UL listed *C...