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Multivibrators and 555 Timer

Q1: Design a circuit using a 74121 to convert a 33-kHz, 30% duty cycle waveform to a 33-kHz, 60% duty cycle waveform.

A Rint = 2 k, Cext = 0.012 nF

B Rint = 2 k, Cext = 0.012 F

C Rint = 4 k, Cext = 0.012 nF

D Rint = 4 k, Cext = 0.012 F

ANS:B - Rint = 2 k, Cext = 0.012 F

No answer description is available.



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