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This is part three of a three part series on DIY synth building. 
Part 1: <a href="http://casperelectronics.com/finished-pieces/omsynth-minilab/omsynth-video-tutorials/video-1-oscillators/">Oscillators</a>
Part 2: <a href="http://casperelectronics.com/finished-pieces/omsynth-minilab/omsynth-video-tutorials/video-2-sequencers/">Sequencers</a>
Part 3: LoFi sampler and voltage controlled filter. 

This part builds on the previous two so I strongly recommend you watch them before proceeding with this one. This is also the most difficult of the three exercises. So again... if you are brand new to electronics I recommend you take the time to watch the first 2 videos and experiment a bit before starting on this one. 

Ok... now with that out of the way, lets build a (lo-fi, noisy, weird) sampler! Scroll down for info on how to use the voice recorder chip to make a crude but totally effective voltage controlled filter. 
For this project you will need:

-<a href="https://www.ee.iitb.ac.in/uma/~wel/wel12/Components%20Records/digital%20ic%20datasheet/cd40106.pdf">CD40106</a> Schmitt trigger IC
-<a href="http://www.intersil.com/content/dam/Intersil/documents/cd40/cd4020bms-24bms-40bms.pdf">CD4040</a> Binary counter/clock divider IC
-<a href="http://www.tuxgraphics.org/npa/outdoor-doorbell/ISD1800_datasheet.pdf">ISD1820</a> Voice recording IC. These may be hard to find in shops, but a quick ebay search will give you lots of options. 
-1k, 10k, 100k, 1M resistors
-100k potentiometers
-0.1uF, 1uF, 10uF capacitors
-a breadboard or two
-a 5volt power supply or 9volt battery with a 5volt regulator like the L78L05
-lots of jumper wires
-alligator clips and some kind of metal objects to clip to in order to make a touch panel for controlling the picth of the sample. 
