ac phase control triacs
Posted on Feb 7, 2014
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A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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The circuit consists of two building blocks. The first is a square wave oscillator made up of two...
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Figure 1-98 is a double five-band equalizer circuit composed of a second connection. FIG IC1 IC14...
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