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July 2012 When I grew up, we lived in Asia, in a home where our cook, Tani was in charge of the kitchen. She used to tell me about her cousin who was able to fix broken radios. LCS-1M - A Full-Featured, Low-Cost Hobby Oscilloscope. This instructable will show you how I developed a simple yet full-featured digital sampling oscilloscope that I hope will enable you to get a successful start in this domain.
The main goals in this development were: Create something that is really usable in practice - i.e. it must have sufficient sample rate to at least cover the audio range (DC up to well over 20 kHz), and a wide input range (from Millivolts up to several Volts). The present design actually is usable up to about 150 kHz (sample rate is 1 MHz = 1 million samples per second).