Low Power PLL FM Transmitter

There are some very interesting projects over at Dick Cappels’ Project Pages. They range from simple LED voltage boost circuits to this complex PLL FM Transmitter. The video of it in action is quite interesting since he installed an LED to monitor what the transmitter is doing. • Dark: No power is applied to the circuit. • Steady red: Power is applied and oscillator is off. • Steady blue: Oscillator

Simulator Racing Seat

This seat is amazing. Watch the top video first. See how the guy is leaning and getting thrown around? We all know the guy that leans into corners when playing racing games 🙂 Now watch the second video to see why this guy is moving around so much! Force Dynamics is making some fine equipment.   Video 1

Light Brix

I can imagine all sorts of uses for these fun blocks in all of the funky new office buildings going up. “Light Brix uses a “modular light system for architecture, which reacts to the electromagnetic fields generated by touch” — producing some very interesting effects as seen above. It consists of a custom designed electronic circuit, plastic shell, and an aluminium structure” via: TechEBlog

Telephone Listening Bug

Leorick Simon found plans to built a telephone listening bug at Electronics Lab. His resulting project looks quite good. He also took the time to design a nice strip board component layout. “Here is a simple transmitter that when connected to a phone line, will transmit anything on that line (execpt the dial tone) to any FM radio. The frequency can be tuned from 88 to about 94Mhz and the

Fun with Gauss

What is Gauss? According to whatis.com is: “The gauss (symbolized G) is the centimeter-gram-second (cgs) unit of magnetic flux density. A flux density of 1 G represents one maxwell per centimeter squared (1 Mx ­ cm-2). The gauss was named for the German scientist Karl Friedrich Gauss.” How can this be fun? Watch the videos below and you will soon see! Check out FastMHz for more project details. “A Gauss

The Singing Keyboard

Here is a cool trick to play on someone. Make their keyboard sing when the caps lock button is pressed. Read more about it at The Mozmonkey Blog. “Take the musical element from a musical greeting card and connect it to the caps lock LED on the user’s keyboard. Each time the victim presses caps lock the music plays (and quite loud too). This is a great sleeping prank…It might

Laser Music Link

  YouTube user ChibiChn has come up with a complex but accurate method of transmitting sound using a laser beam. He uses some 555 chips and a small laser to transmit the sound using laser light. Then a photo transistor, a comparator and a audio amplifier are used to receive the laser light and convert it back into audio. The result is audio that is slightly lower than CD quality.