What oscilloscope can replace the Hewlett Packard oscilloscope

a)Does this Oscilloscope trigger on the rising or falling edge of the signal? b) At what voltage does the trigger signal reach that starts the Oscilloscope ‘Sweep’? c) What is the amplitude of the signal on Channel 1? d) What is the amplitude of the signal on Channel 2? e) What is the period of the signal on Channel 1?

1. Refer to given pic: What is the peak voltage of the clock pulse waveform and what is the Period & Frequency of the clock pulse waveform?

Q4. a) b) Figure 7 shows a phase-shift oscillator. Explain briefly how the phase shift required for sustained oscillation is achieved in this circuit. The feedback ratio of the oscillator shown in Figure 7 is given below. Derive the expression for the oscillation frequency of this circuit. c) 5 -1 1 6 — 27 pe) —i (2fe – (27) :) 2fRC - If the oscillator of Figure 7 is required to operate at 2 kHz, determine the value of the remaining resistors if R₁ = 80 kn and C = 12 nF.