I built one based on plans seen somewhere that included the Radio Shack rheostat that is 25 ohm 3 watt. The slowest speed I can dial in with the rheostat makes the vortex reach the stir stick occasionally. I shot a video of it:
[ame="http://youtu.be/RKV4gqh5pWo"]http://youtu.be/RKV4gqh5pWo[/ame]
It could be that it is no problem but thought I would ask here. Also the stir stick is pretty noisy.. is that normal? Got it off amazon and it has hard edges that rattle against the glass bottom.
Oh, and the fan is 12v. and asks for 1000 mA, and my power supply is 12v 800mA.
thanks, JD
[ame="http://youtu.be/RKV4gqh5pWo"]http://youtu.be/RKV4gqh5pWo[/ame]
It could be that it is no problem but thought I would ask here. Also the stir stick is pretty noisy.. is that normal? Got it off amazon and it has hard edges that rattle against the glass bottom.
Oh, and the fan is 12v. and asks for 1000 mA, and my power supply is 12v 800mA.
thanks, JD