
Oscillators 301
10 PRINT "PROG 2 57"
20 PRINT "WIEN BRIDGE OSCILLATOR"
30 INPUT "ENTER CAPACITANCE IN MICROFARADS" ; C
40 INPUT "ENTER RESISTANCE" : R
50 LET F=10"6/(2*3.141593*R*C)
60 PRINT "OSCILLATION FREQUENCY = " F "HERTZ"
Example 10 A Wien bridge oscillator oscillates at a frequency of
3928 Hz. If the resistance is 270 ft, calculate the value of the
capacitance in microfarads.
10
6
C =
2 x IT x 270 x 3928
= 0.15 (xF
10 PRINT "PROG 258"
20 PRINT "WIEN BRIDGE OSCILLATOR"
30 INPUT "ENTER FREQUENCY" : F
40 INPUT "ENTER RESISTANCE" ; R
50 LET C=IO*6/(2*3.141593*R*F)
60 PRINT "CAPACITANCE = " C "MICROFARADS"
Example 11 In a Wien bridge oscillator ...