# Chapter 13:Oscillators¶

### Example 13.1 Page no.421¶

In [1]:
L=58.6*10**(-6)                         # H, inductance
C=300*10**(-12)                        # F, capacitance

#Calculation
import math
fo=1/(2*math.pi*math.sqrt(L*C))

#Result
print " The Frequency of Oscillation of Tuned Collector Oscillator is fo =  ",round(fo/10**3,2),"KHz"

 The Frequency of Oscillation of Tuned Collector Oscillator is fo =   1200.36 KHz


### Example 13.2 Page no.427¶

In [2]:
R=100000.0                                   # Ohms, resistance
C=0.01*10**(-6)                           #F, capacitance

#Calculation
import math
fo=1/(2*math.pi*R*C*math.sqrt(6))
#Result
print "The Frequency of Oscillation of Vacuum Tube Phase Shift Oscillator is fo =  ",round(fo,2),"Hz"

The Frequency of Oscillation of Vacuum Tube Phase Shift Oscillator is fo =   64.97 Hz


### Example 13.3 Page no.427¶

In [3]:
R1=220000.0                                  # Ohms, Resistance 1
R2=220000.0                                  # Ohms Resistance  2
C1=250*10**(-12)                        #F, capacitance 1
C2=250*10**(-12)                        #F, capacitance 2

#Calculation
import math
fo=1/(2*math.pi*math.sqrt(R1*C1*R2*C2))
# Result
print "The Frequency of Oscillation of Wein Bridge Oscillator is fo =  ",round(fo/10**3,2),"KHz"

The Frequency of Oscillation of Wein Bridge Oscillator is fo =   2.89 KHz