Recent content by audereengineering

I have actually run major projects which were UL approved for a large high tek company. My last UL required project had a budget for the UL safety testing/approval of approximately $250,000 in 1992 dollars. UL is a "for profit" company...

Getting UL or any other "quality" approval process in China is normally an overnight process independent of the fact that some types of testing can not be done overnight with an infinite number of resources... Both very good and very bad products are made in China but the "external" approval...

In the opposite direction of the original request: Light-Emitting Diodes by Schubert is technical (very) It is the best book I have read on LEDs phil000: Rough grinding on (sand blasting to sand paper) the dome on a LED to experiment with a cheap diffused LED source has been around for at...

My name is David Meadows. I am a design engineer and I own Audere Engineering. Part of my time is spent designing and building semiconductor capital equipment which is used to process wafers in fabs around the world. The equipment I make measures small currents (femto amps) generated from...