Oscillator Design
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Related wiki pages Amplifier Design, Power Supply Design.
Fundamentals
Types of Oscillator
Armstrong
The Armstrong oscillator is distinguished by the use of a "tickler coil". In the circuit below, L2 is the tickler coil andis inductively coupled to L1, proving some regeneration to the input of the transistor.
Hartley
The Hartley oscillator has a tickler coil like the Armstrong oscillator but it is part of the "front end' of the circuit. In the diagram below the tickler coil is the lower part of L1.
Clapp
Colpitts
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