uk.people.disability

Palindrome wrote:
> (not quite so) Fat Sam wrote:
>> Temprance wrote:
>>> I don't wish to have to spend a lot of money which I have not enough
>>> of so can anybody give me their thoughts on what is wrong with my
>>> Mercury M48 Scooter. I've got a glitch where all of a sudden it
>>> slows right down and then picks up again. A bit scary as I don't
>>> want to be stuck somewhere. It did it today and about 40 seconds
>>> before the power came back. According to my manual it should beep
>>> at me when something is not working but so far it has remained
>>> silent. temprance
>>
>> Sounds to me like it could be a problem with the rheostat that forms
>> the throttle mechanism.
>> It may be damaged, or it might need cleaning.
>> Is there any regularity to it?
>> Does it always happen when you hit the same speed?
>>
>> Or does it happen when you go over rough surfaces? That might just
>> suggest somethng as simple as a loose connection or a cracked solder
>> joint.
>
> Wow, I haven't seen a speed controller with a rheostat for, oh, more
> years than I can remember. IME, they all use pwm controllers, these
> days. YMMV.
>
> If you mean "potentiometer", I dare say that the OP gave the throttle
> a good old waggle when it stopped. So any poor contact point would
> have been moved off, quite quickly.

Errr. I may have my terminology mixed up...
I mean a variable resistor type thingy...Is that a rheostat or a
potentiometer?