Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...

This easy to construct “Handy pen torch” electronic circuit and low component count, uses two power white LEDs for lighting. Low volt (4.8V dc) supply available from the built in rechargeable Ni-Cd ...

Anyone who has designed circuits using the 555 timer chip will, at some time have wished that it could be programmed for longer timing periods. Anyone who has designed circuits using the 555 timer ...

Home inspectors are seeing a surge of improvised electrical fixes, and they are not impressed. When you run new cable for a basement office or swap in a modern light fixture without permits, the work ...

Elektor introduced a clever seat belt reminder circuit built with simple logic to trigger a flashing warning light.