Subject:
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Re: 9V Electric Wires / Train Power
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Newsgroups:
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lugnet.loc.uk
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Date:
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Fri, 26 Oct 2001 23:21:59 GMT
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Viewed:
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501 times
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On Fri, 26 Oct 2001, Jason J. Railton (<GLtzDM.30A@lugnet.com>) wrote at
20:53:46
>
> Well what you'll miss is your nice trains as they go flying off at the corners!
> The point is to still use the train controller for its primary purpose, to
> whit, controlling trains. But, to also tap off the main supply a steady 9V
> for running other (technic) motorised features on the layout, like my new
> windmill. I've also built two point motors for each end of a passing loop,
> which I want to control with a polarity switch.
Ah. I was wondering if you wanted to run an RCX off the track. I think
I'd use the Control Centres that I have for constant 9V. Although I've
been collecting Code Pilots for train automation as well. Even though
you can draw quite a lot of current from the train controllers, I'd
still be more inclined to use a separate supply, just in case. This
assumes you can get hold of the bits, of course :-)
>
> There's a great big discussion in .trains at the moment about reducing the
> output range of a controller for kiddie use. I've just taken mine apart and
> was surprised by its contents. Needless to say they've come on a little bit
> from a big chunky rheostat. Nor is the controlling gizmo inside a
> transistor, as it first appears.
Had to give up .trains because of time constraints. The controllers
aren't heavy enough to have much inside, although I suppose they
wouldn't be, without the transformer. Doesn't it use a resistor ladder?
You can tell that the power goes up in distinct steps. (don't ask me
what a resistor ladder is. I just know that it's more high-tech than a
potentiometer :-)
--
Tony Priestman
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Message has 1 Reply:
 | | Re: 9V Electric Wires / Train Power
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| (...) The dial just bridges tracks on a PCB. It uses an in-line resistor packet as a 'ladder', which controls the input to a voltage regulator IC (on a big heatsink). The output of that goes back to the controller for forward/reverse switching. I've (...) (23 years ago, 27-Oct-01, to lugnet.loc.uk)
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Message is in Reply To:
| | Re: 9V Electric Wires / Train Power
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| (...) Well what you'll miss is your nice trains as they go flying off at the corners! The point is to still use the train controller for its primary purpose, to whit, controlling trains. But, to also tap off the main supply a steady 9V for running (...) (23 years ago, 26-Oct-01, to lugnet.loc.uk)
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