recomend me a 12v variable resistor

[simmo490]

i am after a variable resistor for my Mk2 cortina heater fan.

 

the old lucas standard resistor for the slow speed has had it.

 

anyone know where i can get a varible one that will work so i can slow the speed of the motor as appripriate

 

cheers

[flyingbanana]

have you tried Potentiometers.dont know if any good or not but just a idea

 

http://www.maplin.co.uk/Search.aspx?cri ... &source=15

[simmo490]

i kow potentiomiters and varible resistors do the same things etc, not sure what the actuall difference is though. i think a pot works at a much lower resistance, not sure

 

anyone??

[Toby]

Mk 1 Owners club ran a thing in their 1/4rly mag - they may be able to help - as well as being handsome, intelligent and funny like all Cortina owners.

[simmo490]

lol where can i get more info?

 

does that mean now i own a cortina i may be able to pull??

[Toby]

does that mean now i own a cortina i may be able to pull??

 

You'll be fighting them off.....

 

 

 

But they'll all just be after the car

 

 

 

And try here for the resistor

 

http://www.mk1cortina.com/

[Dalek]

i am after a variable resistor for my Mk2 cortina heater fan.

 

the old lucas standard resistor for the slow speed has had it.

 

anyone know where i can get a varible one that will work so i can slow the speed of the motor as appripriate

 

cheers

 

You're going to need a rheostat m8, not a variable resitor as it won't handle the current. Have a wee look here to explain it a bit better. http://en.wikipedia.org/wiki/Potentiometer

 

Next you need to find out what the value of your old resitor was. It might say on the side. The value will be in Ohms. If it doesn't you need to get a hold of a good one and messure the resitance with a meter. You also need to know the wattage of the origional resitor so you can get a rheostat with the same or higher wattage.

 

Hope this helps a bit.

 

Craig

[simmo490]

cheers guys.

 

so i need a rheostat.

 

i know the motor draws 4.05 amps but i dont know what resistance etc i need

[Supercharged Nat]

http://www.cpemma.co.uk/rheo.html

 

have a read of that, some handy info there..