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Four channel RF remote control
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14 Watt Compact Fluorescent Electronic Ballast
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AV (Audio/Video) Wireless Transmitter
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Simple receiver with microvolt sensitivity
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Triangle-Wave Generator
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Simple FM Radio with improved audio gain
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Sine Wave Oscillator
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Photocell Amplifiers
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Car NiCad Charger
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The Full-Wave Rectifier and Averaging Filter
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Positive Peak Detector with Buffered Output
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9-Line Telephone Sharer
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Audio-video switch
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12V to 9V DC converter
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