#147: Basics of Varactor Diodes | Voltage Controlled Oscillator VCO Example
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#289: Back to Basics: Zener Diodes - How to Use | Applications | not all created equal
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Understanding and Using Varactor Diodes #118a
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RF tutorials - The Varicap or Varactor Diode
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5 Ways To Generate A Sine Wave (Analog)
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#118: Basics of PIN diodes and their use in RF switch applications
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#82: How to use a Diode as a Switch / Diodes as Switches / Basics of Diode Switches
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Active rectifiers (1/2)
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