Q1 .  a) Discuss about RL Low pass circuit and RL High pass circuit.
b) An ideal 2 μs pulse is fed to an amplifier. Calculate and plot the output waveform when the upper 3-dB frequency is i) 5 MHz and ii) 0.05 MHz

Q2 .  a) State and prove clamping circuit theorem.
b) Design a diode clamper to restore the negative peaks of the input signal to zero level. Use a silicon diode with Rf = 50 Ω and Rr = 400 kΩ. The frequency of the input signal is 5 kHz

Q3 .  a) Explain about direct connected binary. Write the advantages and disadvantages of it.
b) Design a collector coupled one-shot with a gate width of 3 ms using n-p-n transistors. Assume necessary data.

Q4 .  a) Prove that for any periodic input waveform the average level of the steady state output signal from the RC high pass circuit is always zero.
b) Draw the output of the high pass RC circuit for square wave input. Derive the expression for perc

Q5 .  a) With the help of a neat circuit diagram explain the working of a two – level diode clipper.
b) What is a comparator? List out the applications of a voltage comparator.

Q6 .  a) Design a TTL NAND gate and explain the operation with the help of function table.
b) For a CE circuit VCC = 10V, RC = 1K, IB = 0.2A. Determine: i) The value of hfe (min) for saturation to occur, ii) If RC is change to 220 Ω, will the transist

Q7 .  a) Draw and explain the working principle of a stable multivibrator circuit and also explain the merits and limitations of it.
b) With the help of a neat circuit diagram and waveform, explain the principle of operation of collector coupled monos