Build a Ground Loop Detector

Ground loops are a common problem in many experimental setups. A ground loop is an un- wanted closed loop of cables in the setup, most often through the ground system. Those ground loops are often hard to find and debug. A Ground Loop Detector document describes how to build and test a simple system to

Build video isolator

Video isolation transformers are primarily used in CCTV application in fields of security, manufacturing, avionics and display. The video isolation transformer is an extremely broad bandpass 1:1 isolation transformer. Its hum isolation is very good and it can sustain very high noise voltages without degradation. Isolation decreases with increasing noise frequency. Video signals can transformer

See inside PC parts

You may know what the inside of a PC looks like, but what about the parts which make up your PC components? Your Hardware Exposed! 22 PC Parts Bare All article has pictures what is inside hard drives, keyboards, soundcards, and a plethora of other PC hardware. Just to see what makes them tick.

Resistance soldering

Resistance soldering is a soldering method that sometimes useful for hobby work. In this soldering methid an electrical current is flowed through one work piece, the joint and then the other work piece. Current through a resistances on the way generates heat. Most heat is normally generated on the joint because the resistance there is

HDMI cable pricing

EDN blog articlwe HDMI cables for $2 or $600? mentions article Why are HDMI cables so expensive?. In this article product researchers find little difference between a $10 and a $140 HDMI cable. The result was that the expensive cables may be made with better materials, but they don�t perform digital transmission any better than

ColdHeat soldering iron

Coldheat is an American company that develops and markets special soldering iron called ColdHeat. ColdHeat iron product was review at eariler. The secret of that product is a proprietary graphite-like compound called Athalite. The tip of this apparatus is split into two sections that completes an electrical circuit when something of low resistance is

IE6 No More!

The topic of site support for IE6 has had a lot of discussion on the web recently. Enough is enough. IE6 is an ancient browser released in late 2001. Why would anyone run an eight-year old browser? Should sites continue to support it? What more can anyone do to get IE6 users to upgrade? IE6

Control Systems for Live Entertainment, 3rd Edition

John Huntington’s Control Systems for Live Entertainment, 3rd Edition book offers an in-depth examination of control for lighting, lasers, sound, stage machinery, animatronics, special effects, and pyrotechnics for concerts, theme parks, theatre, themed-retail, cruise ships, museums, special and other events. This is an excellent reference concerning what’s going on in audio control as well as