Wiper Block

[mazur50]

I am looking for a wiper block that is simular to the ones used in the old tyco slotcar controllers. I want to use it was a wiper block for a varable resistor.

let me know if you have any sources.

thanks
Mike

[A.T.]

I am looking for a wiper block that is simular to the ones used in the old tyco slotcar controllers. I want to use it was a wiper block for a varable resistor. let me know if you have any sources. thanks Mike
What amp rating? the Tyco burnt out easily when used for other purposes - check out the RC Car variable resistor type units, very easy to set up. e.g.
Speed Controller with variable resistor (http://www.acehobby.co.nz/ossb2/root/OSSBEC1/showitem.asp?PID=1090)
Speed Control Heavy Duty with twin battery connector (Sea Dagger & Triton) (http://www.acehobby.co.nz/ossb2/root/OSSBEC1/showitem.asp?PID=1129)
Regards
Alan T.
Alan's Hobby, Model & RC FAQ Web Links (http://homepages.ihug.co.nz/~atong)

[green-boat]

Something along these lines. http://www.shopatron.com/product/part_number=00281A/137.0.6083.564.0.0.0

Back in the early days of 1/12 scale R/C cars, this is all we had.

[mazur50]

I dont need anything to crazy 1watt to 1/2 watt just using it to control a transistor. looking for like 400 ohms

[mazur50]

Somthing like this

http://www.slotcarcorner.com/SBS_Pics/3rdEye/Renegade_2.jpg

[Flash1940]

I'll bet you could make a dremel tool brush do the job.....Might need to file it to size....!!

Flash

[mazur50]

What you mean a dremel brush. I am looking for the coil that the wiper goes on. I am looking to making my own control but i dont know where to source somthing like the one in the pick the long white coil.

[Brandano]

Does it have to be linear? You can easily find rotary wirewound potentiometers for various voltages and wattages. Another source for a similar wirewound potentiometer for a fairly high voltage-current requirement is the foot pedal used to regulate the speed of sewing machines. I use an old one on my minidrill, not really good to regulate the speed but cheap and readily available

[mazur50]

i had the idea of using a pot but needs to be a good quality one that can handle a lot of rotations any other ideas for sourcing somthing like the one in the pic.

[mazur50]

Do you think that the block in the pic of the controller might be the inside of a ceramic wirewound resistor.