Working principle of Hartley oscillator

1) Important points to remember: 

$$A=\frac{-Z_1}{r_e’}=\frac{-Z_1\paralle...}

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Working principle of Phase shift oscillator

1) Importance points to remember:

$$V_2=i_3 x_C+V_3$$

$$v_2=\frac{v_3}{j \omega C R...}

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Working principle of Colpits oscillators

1) Importance equation  to remember:

\(\therefore\) feedback ratio(\(beta’\))=\...}

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Feedback amplifier

1) Types of feedback amplifier

  positive amplifier

  negative amplifier<...}

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Field effect transistor and its characteristics:

1) Types of feedback amplifier

 Negative feedback 

positive feedback

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Unijunction transistor and its characteristics

1) construction of UJT.

2) different types of characteristics

cut off region

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Multivibrator and its working principle

1) Types of multivibrator 

Astable multivibrator 

Monostable multivibrato...}

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Barkhousen Criterion and explanation of negative feedback amplifier:

1) important equations

$$A’=\frac{A}{1-A\beta}$$

$$\Rightarrow v_{circ}&rsquo...}

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