TITLEBAR##$cfgWebTitle - Metal Detectors - Projects - ETI1500 KEYWORDS##metal detector, metal locator, VLF, discriminator, Phil Wait, Lee Allen BANNER##ETI TITLE##ETI561: A 'Discriminating' Metal Detector CATEGORY##by Lee Allen & Phil Wait TEXT## This project is a VLF/TR-disc design. It is one of the more complex detector projects that has been published, and includes a VLF ground-canceling mode, and a TR-discriminate mode. The article also has some good pics of oscilloscope waveforms. It was originally published in an issue of ETI magazine, and reprinted in the 1981 ETI book "How to Build Gold and Treasure Detectors." ETI has been merged into Everyday Practical Electronics, a popular electronics magazine that is published in the UK by Wimborne Publishing, Ltd. END LINKS## ETI1500##$cfgPageUrl/projects/eti1500/eti1500_150.pdf##ETI1500_150PDF##_new##(PDF-999K, 150dpi) ETI1500##$cfgPageUrl/projects/eti1500/eti1500_300.pdf##ETI1500_300PDF##_new##(PDF-3168K, 300dpi) END