these are the circuit boards usefull for implementation and exectution of practicals

1. Practical Examination
Preparation……

2. Points to be remember……
• Certified journal copy is compulsory
• Carry identity card and hall ticket.
• Wear clean formals.
• Read and write given statement correctly.
• Change of experiment is not allowed.
• Draw neat and correct circuit diagram (use pencil and scale and get it checked
from expert assistant or internal examiner).
• Improve Handwriting (font and vertical orientation of letter)
• Identification of components (Avoid DMM ). Write std. typical values of
resistors.
• Ensure the proper soldering of components by measuring the values on DMM.
• Instrument identification. Go through the necessary front panel control of DSO,
Power supply and Function generator.
• Know theoretical expected waveforms, response and results.
• Refer IC ordering information, Pin-outs and datasheets.
• Communicate oral questions to your friends through electronic media.
• Be specific and polite while answering.
• Collect copy of your journal after the examination.

4. Differential Amplifier

5. Differential Amplifier
• Adjust the  Vcc correctly by multimeter.
(Don’t trust on display of power supply)
• Variable voltage on-board.
• Locate RE and fix the position of switch.
• Do not use signal generator.
• Label the characteristics/ waveforms correctly.
• Write relevant conclusion.

6. OP-Amp Parameters
• Read definition, significance, ideal and typical
value of all parameters(LM741, LF356).
• Importance of parameter in different
applications.
• Don’t forget to connect gnd connection on
board.

7. General Purpose Board

8. OP-Amp Parameters

9. Integrator / Differentiator
• Draw frequency response on semilong
• Mention fa, fb and gain at these frequencies
on graph
• Draw the input and output waveforms at Fb
for integrator and fa for differentiator

10. Integrator / Differentiator

11. Precision Rectifier
• More practice is requred to draw the circuit
diagram of different configuration
• Mention the IC pin number in circuit diagram
• Amplitude of input signal should be less than
700mV
• Check the soldered resistor and diodes with
DMM

12. Precision Rectifier

13. Precision Rectifier

14. Schmitt trigger
• Apply input voltage greater than UTP and LTP
• Ensure ‘OFFSET’ and ‘Symmetry’ knob of
function generator to be OFF
• Mention axis, voltages (Vsat, UTP, LTP) on
hysteresis graph
• Advantages of Schmitt trigger over simple
comparator
• How to debug circuit

15. Schmitt trigger

16. Triangular wave generator
• Implement the circuit partly i.e. first
implement square wave generator and then
integrator.
• Connect the back to back zener diodes with
series resistor after the square wave
generator. (know the importance of this
connection).

17. General Purpose Board

18. Triangular wave generator

20. Instrumentation Amplifier

21. Sample and hold amplifier

22. Phase Locked Loop

24. ADC

25. DAC

26. ALL THE BEST……