PWM speed controlled stirplate. Question about parts.

[ebbbe]

Hello

I'm putting together a shopping list for a stir plate build I want to make. I already have a 12v CPU fan and a 5v power supply. Could I use this PWM to control the speed of the fan?
http://www.ebay.co.uk/itm/251508396459?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

I would also like to have an on/off switch. How do I determine campatibility with the other components?

Maybe I shoud add, that I brew small batches of 2.5 gallons, so my biggest starters will probably be around 2L. Probably closer to 1.5L normally.

Thanks alot!

 

[alphaomega]

I have not used that one, but I see no reason it wouldn't work.
I've been using these dimmers and they are just great.

 

[Herb3]

This is the one I used when I built my stir plate and it has worked great. http://www.amazon.com/gp/product/B00F839VNQ/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

 

[MagooBrew]

I have not used that one, but I see no reason it wouldn't work.
I've been using these dimmers and they are just great.

Are the potentiometers on these soldered to a pcb or are they wired?

 

[alphaomega]

The pcb is attached with screws to the bottom half of the casing and the pot is fastened on the top half through a hole. Wires from the pot, with a connector, to mating connector on the pcb.
Disassebles nicely, very hacker friendly
see this thread for pictures