You can configure an amplifier stage, based on a JFET transistor, as a common drain

Authors	Herminio Martinez
Main Document	Article «JFETs Offer LC Oscillators with Few Components»
Description	Figure 1
File Format / Size	PDF / 12 Kb
Document Language	English

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Article «JFETs Offer LC Oscillators with Few Components»

Figure 1. You can configure an amplifier stage, based on a JFET transistor, as a common drain
Figure 2. To complete the oscillator circuit, you add an LC-resonant tank to the amplifier stage; the result is a Colpitts oscillator
Figure 3. You can develop a Hartley oscillator based on a JFET transistor
Figure 4. With C₁ having a value of 50 nF and C₂ having a value of 114 nF, the circuit oscillates

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