Types of Oscillator
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.
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.
|Physical quantities||Current * Gain * Impedance * Power * Q of a circuit * Radiated Power Measurement * Reactance* Resistivity * Resonance * Voltage|
|Components||Baluns * Bipolar-Junction Transistors * Capacitors * Diodes * Inductors* Lasers * Microphones * Resistors * Transformers * Wire|
|Circuits||Attenuators * Digital Signal Processing (DSP) * Dummy load * Filters * LC filters * Power Supply Design * Rectifier Circuits|
|Design||Amplifier Design * Oscillator Design|
|Electromagnetic Waves||Relative power (Decibels) * Harmonics * Interference and BPL|