Get flash to fully experience Pearltrees
We are collecting information about hardware interfaces of modern and obsolete hardware, pinouts of ports, expansion slots, and other connectors of computers and other devices . This information is essential for everyone who wants to investigate modern computer hardware, explore the how it works, connect various devices to computer. The hardware investigated here includes modern (PC, Apple Macintosh,...) and obsolete (Atari, Commodore, MSX,...) computers, mobile phones and some other devices (like GPS units, PDA,...). Most of our documents have been created by our visitors , written by me or collected from publicly available sources (with link(s) to origin(s) included). Feel free to contact webmaster if you believe that any of this publications affects your author's rights. Content of this site is a result of our collective work.
Theory of operation and schematics of the most common metal detectors used today: Very Low Frequency (VLF), Pulse Induction (PI) and Beat-Frequency Oscillator (BFO). The wireless microphone transmitter can be built in an afternoon with simple, affordable and widely available parts. Take care with transmitter circuits. It is illegal in most countries to operate radio transmitters without a license. But the output power of this circuit is below the legal limits of many countries (e.g., USA and Australia).
www.electricstuff.co.uk Each of the three main sections has a 'tour' facility for easier navigation through the pages - clicking on the small icons at the corners of each page will move to the next or previous page in that section. Warning!
This circuit is how [John Tsiombikas] makes his cheap 3D shutter glasses work with a Linux machine . It’s not that they were incompatible with Linux. The issue is that only certain video cards have the stereo port necessary to drive the head-mounted hardware.