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Electronics II and Lab
Oscillators
Design a 555 astable multivibrator using 2 resistors - Ra and Rb and a capacitor C, as shown in the circuit shown below. The specifications are: C = 680pF, one of the resistors is 10k?, and a duty cycle of 65%. Calculate all the values in the table, show ALL work.
INTRODUCTION
State the theory behind the lab
Answer the pre-lab question(s), and perform calculations if necessary.
EQUIPMENT
List of devices and meters used to conduct the experiment
PROCEDURE
Steps you took to carry out the lab.
RESULTS
Calculate/Given
Measure
Ra
Rb
tH
tL
period
frequency
CONCLUSION
What did you learn?
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