1. Investigation: Take snapshots of Oscilloscope waveforms and Spectra with measurements displayed. Don't forget to add a title to anything pasted into your log book. [2 marks] 1. Record the waveforms

at Collector output and Emitter input, and using the Digital Oscilloscope, determine the resonant frequency by measurement. Note relationship between the input and output of the transistor. the phase [3 Marks] [1 mark] [1 mark] [1 mark] [1 mark] [1 mark] [2 marks] [2 marks] Q. Why is the feedback point from the junction of different value capacitors? 4. Use the FFT maths function of the oscilloscope to have a look at the spectrum of the output signal and check that there are no spurious harmonics (unobservable in the time domain). [4 Marks] 5. Try to capture the oscillator start up signals (Time domain) at the instant of supplying the DC supply and examine/identify the various parts of the waveform. [2 marks] 2. Discussion on Results and Observations: What objectives do you think can be achieved in carrying out this experimental work? Reflect on these objectives. Summarise the whole lab session in your own words and conclude what did you gain from this exercise? Explain your experience of analysing electronic circuits that use passive components such as resistor, capacitors and inductors. What are the main applications of these types of circuits? What are the drawbacks of these circuits? Comment on the skills you gained in this lab session - how do you feel about the session in terms of understanding the concepts given in the lecture? [6 Marks] Q. Where is the input? 2. Calculate the Frequency F 1 211√LC Q. Why is the frequency not quite what you calculated? 3. Measure and record the DC bias voltages at Emitter, Base & Collector Q. What bias configuration is the transistor in? Q. What is the function of C3? Note that C1 & C2 are in series.