# Wein Bridge Oscillator Calculator

## About Wienbridge Oscillator Calculator

The above online Wienbridge calculator helps you to calculate the resistor and capacitor values for desired resonant frequency.

### Equations Used:

\(F_{r}= \frac{1}{2\pi RC},\) \(B=\frac{1}{\sqrt{9-(X_{c}/R-R/X_{c})^2}}\)

# RC Phase Shift Oscillator Calculator

## About RC Phase Shift Oscillator Calculator

The above online RC phase shift oscillator calculator is free and calculates the resistor, capacitor, resonant frequency, feedback fraction for the oscillator circuit.

Tutorials on design of Colpitts oscillator are as follows:

(1) 2N2222 Phase Shift Oscillator
(2) BC547 Transistor Phase Shift Oscillator

### Equations Used:

\(F_{r}= \frac{1}{2\pi RC\sqrt{6}},\) \(R_{b}=29R,\) \(A_{CL}=\frac{R_{f}}{R},\) \(B=\frac{1}{29}\)

# Colpitts Oscillator Calculator

## About Colpitts Oscillator Calculator

The above online Colpitts Oscillator calculator is free and calculates the resistor, capacitor, resonant frequency, feedback fraction for the oscillator circuit.

Tutorials on design of Colpitts oscillator are as follows:

(1) Colpitts oscillator with LM358 and TL072 Op-Amps

(2) 2N5550 Colpitts Oscillator

(3) Drain Feedback biased E-MOSFET Colpitts Oscillator

(4) Search Coil E-MOSFET Colpitts Oscillator

**Equations Used:**

\(F_{r}= \frac{1}{2\pi \sqrt{LC}},\) \(C=\frac{C_{1}C_{2}}{C_{1}+C_{2}},\) \(B=\frac{C_{1}}{C_{2}}\)

# Hartley Oscillator Calculator

## About Hartley Oscillator Calculator

The above online Hartley Oscillator calculator is free and calculates the resistor, capacitor, resonant frequency, feedback fraction for the oscillator circuit.

Tutorials on design of Hartley oscillator are as follows:

(1) JFET Hartley Oscillator
(2) Hartley Oscillator Design with Enhancement MOSFET

### Equations Used:

\(F_{r}=\frac{1}{2\pi \sqrt{LC}},\) \(L=L_{1}+L_{2},\) \(B=\frac{L_{2}}{L_{1}},\) \(A_{CL(min)}=\frac{L_{1}}{L_{2}}\)

thank you

glad to hear it helped

resistor R1 is not indicated on the diagram. (the lamp)

yes the Lamp acts as a variable resistor

What is RF supposed to be?

I used RF or Rf to denote the feedback resistor.