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CigarBoxAudio 2nd August 2009 10:19 AM

Hypothetical volume control situation
 
Suppose I had an amplifier circuit that was designed for use with a volume control in the 22-47kohm range, but all I had was a 10kohm pot.

What would happen if I used that 10kohm pot with that circuit?

Thanks!

jan.didden 2nd August 2009 10:25 AM

Re: Hypothetical volume control situation
 
Quote:

Originally posted by CigarBoxAudio
Suppose I had an amplifier circuit that was designed for use with a volume control in the 22-47kohm range, but all I had was a 10kohm pot.

What would happen if I used that 10kohm pot with that circuit?

Thanks!


If the circuit was designed *to be driven by* the pot, no problem.
If the circuit was designed *to drive* the pot, it may be loaded too much.

jd

Jan Dupont 2nd August 2009 10:54 AM

Where is the pot placed in the circuit ?

Even with a high level line signal, e.g. 4V, the load using a 10K pot isn't much (0.4mA + the load of the following circuit).


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