Circuit Lake

By Mike Byrne
INTRODUCTION
All IC processes have an intrinsic breakdown voltage associated wlth them. and this results in a maximum voltage stress which can be applied to any device fabricated on that process. Aa a result, all IC manufacturers give an Absolute Maximum Ratings specification for their devices. This generally gives the maximum voltage which can [...]

Desoldering is the removal of solder and components from a PCB for troubleshooting, for repair purposes, and to salvage components. The tools for desoldering are solder wick, heat guns, desoldering pump, removal alloys, removal fluxes, vacuum and pressure pumps with specialized heater tips and nozzles, Rework stations (used to repair printed circuit boards that fail [...]

Soldering is an electronics process join together two or more metal by melting and flowing a filler metal (having a relatively low melting point) into the joint. In other words, you use a metal that has a low melting point to adhere the surfaces to be soldered together. The filler metal used in the process [...]

If you want to build some interesting clock, perhaps you can try this, Propeller Clock. In this project, scanning Led process uses spin motor. It will give Illusion of numbers in the air.
How this clock works:
A motor spins the “propeller”, and a small microcontroller keeps track of time and changes the pattern on seven LEDs [...]