If high-order frequency multiplication is required from a diode multip

1.	If high-order frequency multiplication is required from a diode multiplier:
A.	The resistive cutoff frequency must be high
B.	A small value of base resistance is required
C.	A step-recovery diode must be used
D.	A large range of capacitance variation is needed
Answer» D. A large range of capacitance variation is needed

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