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Oscilloscope and Multimeter Schematics

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Digital PC Oscilloscope

Digital PC Oscilloscope

http://www.ee.washington.edu/conselec/CE/sp95reports/guterman/final/scope1.htm

Buffer Hardware for xoscope

Buffer Hardware for xoscope

This circuit is a buffer between oscilloscope probes and sound card. It provides amplification and protection against high voltage input signals.

http://xoscope.sourceforge.net/hardware/hardware.html

Basic Multimeter

Basic Multimeter

http://www.qsl.net/g3pto/mmeter.html

PC-Based Oscilloscope

PC-Based Oscilloscope

This circuit conditions different signals of frequency below 1 kHz and displays their waveforms on the PC screen.

http://www.electronicsforu.com/efylinux/circuit/dec2002/circuit1_oscilloscope.pdf


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