Do More

Here is some important ADVANTAGES and DISADVANTAGES OF RC PHASE SHIFT OSCILLATORS ADVANTAGES OF RC PHASE SHIFT OSCILLATOR. 1. It is cheap and simple to design because it contains only one transistors with some Resistors and Capacitors. 2. It provides good Frequency stability. 3. Circuit is simpler than other OSCILLATOR. 4. It doesn't need any negative feedback and stabilisation arrangements. 5. The output is Sinusoidal so it is quite Distortion Free. 6. Having wide operating Frequency range. 7. Also suitable for low Frequencies. DISADVANTAGES OF RC PHASE SHIFT OSCILLATOR. 1. The output is small due to smaller feedback. 2. It is difficult for the Circuit to start oscillations. 3. The Frequency stability is not so Good. 4. It requires high Vcc. For large feedback. Back to MYCIRCUITS9

Here is a phase-shift audio oscillator with excellent distortion characteristics thanks to “softened” diode limiting provided by the 1N914 and resistor divider and degenerated gain provided by the 68 ohm emitter resistor. For minimum distortion, increase the 68 ohm resistor to a point just below where oscillation stops. A simple buffer may be added for driving lower impedance loads. The output amplitude will be about 5 volts p-p but one of the 1N914 ’s 10k divider resistors may be changed for a different output amplitude. The circuit will work well with a power supply voltage other than 9 volts but the 68 ohm resistor may need adjustment