ATT WEEK 5 LEARNING COMPANION 2026 FINANCIAL STATEMENTS PREPARATION AND ANALYSIS BASICS

ATT WEEK 5 LEARNING COMPANION 2026
FINANCIAL STATEMENTS PREPARATION
AND ANALYSIS BASICS

◉ Oscillators Are Classified by
Answer: Feedback systems


◉ LC Oscillator
Answer: Feedback is based on repeated energy transfer from C to L
and back


◉ RC Oscillator Add
Answer: 60 out of phase each capacitor


◉ RC Oscillators Share
Answer: The Input coupling C and R4


◉ RC Oscillator Less Then 180 Phase Shift
Answer: Degenerative feedback


◉ Hartley Oscillators Have

,Answer: 2 L in series


◉ Hartley Oscillators (Output Taken from Q)
Answer: Class A


◉ Hartley Oscillator (Output Taken from Feedback)
Answer: Class B or C (no temp stablization)


◉ Hartley Oscillators Use Two L to
Answer: Prevent over driving amplifier


◉ Colpitts Oscillator Uses
Answer: 2 C in the feedback system


◉ Colpitts Oscillator Use Two C to
Answer: Prevent over driving amplifier


◉ Colpitts Oscillator (Output Taken from Q)
Answer: Class A


◉ Colpitts Oscillator (Output Taken from Feedback)
Answer: Class B or C (no temp stabilization)

, ◉ 1st Step to TS Hartley or Colpitts Oscillators
Answer: Look at output (wrong = fault)


◉ 2nd Step to TS Hartley or Colpitts Oscillators
Answer: Look at input (wrong = fault)


◉ 3rd Step to TS Hartley or Colpitts Oscillators
Answer: Amp checks- R measurements in FET


◉ 4th Step to TS Hartley or Colpitts Oscillators
Answer: Feedback circuit R measurements


◉ 5th Step to TS Hartley or Colpitts Oscillators
Answer: Recheck output


◉ RC Phase Shift Oscillator Has 2
Answer: Transistors


◉ RC Phase Shift Oscillator Q1
Answer: Oscillator amplifier (Common E)