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

1.

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

Answer: Option B

Explanation:

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