Silverstone FM121 fan and Pot Controller

[PAPADOC]

Hello,


I find the stock Pot on the FM121 not too precise.

Hence I want to change it with a potentionmeter that is more precise,

can anyone tell me what potentionmeter I will need for this, like what range?

Thanks

Chris

 

[PAPADOC]

Ok i calculated the pot included with the FM-121 fan

it's range is : 0 Ohms to 10K Ohms

Now i calculated the resistance of the fan at 30 Ohms

and for me to get the fan down to 7VDC (it's starting voltage)

I need to add about 22 Ohms

So i guess a Pot of 20 Ohms should be perfect Right?

I can reduce the pot to 0 resistance to get the full 12V
and then when I max out the pot I should get a tad above 7VDC right?

Please correct me if I'm wrong

Thanks !

 

[Zepper]

It's not just the voltage you need to be wary of, it's the current/power. A Sunbeam Rheobus fan controller (jab-tech.com carries the basic one for around $10.00) may not cost any more than a rheostat of the proper power capacity at the bottom line. That 10k pot should shut the thing down almost immediately unless it has a very slow taper or is wired strangely

.bh.