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Is it possible???

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b1pu

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I want to make a variable resistor, whose resistance will change with time like a sine curve... is it possible? is there any 'not too complex' ckt for that as I am a beginner? pls help.
 
Hi,

What do you intend to use this for?
 
I want to multiply a sine wave to another one... by Op amp i can multiply with a fixed quantity ... so I want to use the variable r. there.....
 
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