1. Colpitts Oscillator

2.Butler Oscillator

3.Hartely Oscillator

It is harmonics type sinusoidal oscillator

Tank circuit determine the output frequency of oscillation

Capacitor based voltage divider provides the feedback signal

Colpitts oscillator generate frequency above 1MHz

Frequency Range ˜ 14MHz

   2. Butler Oscillator                                                                                                  [TOC]

   Features

Quartz crystal is placed instead of conventional circuit

Large improvement in frequency stability

Frequency Range : 12MHz

It is simplest sinusoidal oscillator

Tank circuit determine the output frequency of oscillation

Inductor based voltage divider provided the feedback signal

Frequency Range ˜ 14MHz

   4. Crystal Oscillator :                                                                                               [TOC]

Quartz crystal is placed instead of conventional circuit

Large improvement in frequency stability

The oscillator frequency is determined by crystal

Frequency Range ˜ 12MHz

   5. Clapp RF Oscillator :                                                                                            [TOC]

It is series tuned version of the colpitts oscillator

Series Resonance circuit determined the frequency of oscillation

   6. Pierce Oscillator                                                                                                    [TOC]

Quartz crystal is placed instead of tank circuit

Improvement in frequency stability

Builtin amplifier

Frequency : 12 MHz

   7. RF Oscillator Design Module :                                                                              [TOC]

   Features

Bare PCB and components will be given separately.