Re: [Electronica] simple speed controller help wanted
- On Wednesday 12 January 2005 08:59 am, roymattblack wrote:
> I build battery/manual control electric loco's for garden railwaysPossibly. Do you have a schematic for the thing you're trying to build? Or
> as a hobby. They are about 1/19th scale and use an 18v motor driven
> by 12v rechargables. At present I'm buying a kit of parts to build a
> manual motor speed control consisting of:
> on-off switch, forward-reverse switch, speed control potentiometer
> and a small 3-legged voltage regulator chip and one resistor.
> This lot is costing me £11 a time but I can see all the various
> (similar) parts in a Squires catalogue for around £3.
> Trouble is, I don't know what rating or value etc the voltage reg
> chip is, or the pot. In other words, I don't know what to buy.
> Can ANYONE help me with a simple explanation (I'm NOT an electrics
> expert) And provide a list of the bits I need?
> Many thanks.
is it online someplace? Without that sort of info I'm not sure what I'll be
able to help you with.
I know of one site that I hit some time back, do a search on "Rob Paisley",
he's in Canada and has a ton of model railroad stuff on there and some of it
might be applicable to what you're trying to do, particularly the "throttle"