Digital Electronics - Multivibrators and 555 Timer - Discussion

Discussion :: Multivibrators and 555 Timer - General Questions (Q.No.16)

16. 

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:

No answer description available for this question.

Shailesh said: (Sep 14, 2014)  
How its come ?

Mallu said: (Nov 15, 2014)  
I need formula, tell me how to design?

Tina said: (Jul 12, 2016)  
How? Explain the solution.

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