Potentiometers

Looking for high quality replacement pots for steering wheel. Is 2 watt better than 1 watt or 1/2 watt ? Is 100K Ohm better than 200K Ohm ? Is Resistance Tolerance of 10% better than 5% ? Which is better, Cermet, Plastic, or Carbon ? Have found the following online. Has anybody used these ? Which is better ? DigiKey Clarostat #308NPC104-ND #309NPC104-ND DigiKey Precision #RV4N104C-ND At http://soli.inav.net/~thomas/prods.htm TSW lists DK Pots used by HAL league racers. Spec Pots with 2 million cycle rotational life. For non-TSW owners, who manufactures the DK and Spec Pots and where can they be ordered online ? What are the pots used in the ECCI ? For non-ECCI owners, who manufactures the ECCI pots and where can they be ordered online ? Any other potentiometer suggestions ? Thanks in advance.

Could you forward any info you receive to me. thanks

There are different size pots,bushings,shafts etc. Is this for a TM product or do it yourself project? 1/2 watt pots are sufficient for controllers .>Is 100K Ohm better than 200K Ohm ? 100k linear taper should work fine.My TM Nascar Pro has 250k linear taper pots.I haven't owned it long enough to need replacements so I haven't experimented yet. 10% tolerance means a 100k pot could measure 90k-110k.As the controllers don't use the full rotation of the pot you will not notice a differance. Cermets are generally used in industrial applications,very heavy duty.Conductive plastic is an excellent choice,last would be Carbon. The pc in the part number NPC means it's for a printed circuit application,you want "solder lugs". The Spec Pots look to be Spectrol brand model 157,not positive about that because the picture is tiny.I'll do a little checking in my catalogs.The DK is probably an OEM pot stamped with DigiKey's name. I haven't seen any pictures of the ECCI pots so I can't tell you. Check the pots specifications for "rotational life",2 million is about as high as I've seen.Need any more info just post or e-mail me.Dave.

Plastic, surprisingly, are the best. Spectrol make very good ones, supply both in US and UK and even have a web site http://www.spectrol.com/ Paul

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> Looking for high quality replacement pots for steering wheel. > Is 2 watt better than 1 watt or 1/2 watt ? > Is 100K Ohm better than 200K Ohm ? > Is Resistance Tolerance of 10% better than 5% ? > Which is better, Cermet, Plastic, or Carbon ? > Have found the following online. Has anybody used these ? > Which is better ? > DigiKey Clarostat > #308NPC104-ND > #309NPC104-ND > DigiKey Precision > #RV4N104C-ND > At http://soli.inav.net/~thomas/prods.htm, TSW lists > DK Pots used by HAL league racers. > Spec Pots with 2 million cycle rotational life. > For non-TSW owners, who manufactures the DK and Spec Pots and where > can they be ordered online ? > What are the pots used in the ECCI ? > For non-ECCI owners, who manufactures the ECCI pots and where can > they be ordered online ? > Any other potentiometer suggestions ? > Thanks in advance.