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Adding Choke to controller

5162 Views 23 Replies 10 Participants Last post by  RichD
Hi all I have several controllers with variuos controlls ie brakes, sensitivity, traction control etc but would like to add a choke switch preferably on the wire cables so that I can quickly change the max voltage for a technical section of track. Ideally also with a dial to dial in the desired voltage for the switch to use (ie 9 or 10 volts).

Are there any parts that I should consider that I could get from the local electorinics shop.


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Hi just to clarify, as im looking to make one as well, on Maplins, is it the glass diodes or silicon? excuse the stupid question im learning!!!

Many thanks, Christmas project me thinks!!

Talking of which, Merry Christmas everyone!
Just finished putting by brake adjuster together, all looks good, would like to warn people that the 3a diodes are a little bigger than the 1a so they take a bit more work to keep tidy, something im not sure I've managed but im happy with it, cant wait to get to a track to test it now!!!

Also, this now leads me to the next bit, what is the best way of having adjustable sensitivity?

Any help is appreciated or a poke in the right direction!


QUOTE (pfj @ 31 Dec 2011, 21:16) <{POST_SNAPBACK}>Hi, don't want to put a dampner on thing's but the diode's that have been suggested earlier are for reduceing your track voltage at about 0.7v these being rectifier diode's, for adjustable brake's it's better with Schottky rectifier diode's these have a drop around 0.3v giving a closer spaceing per step, for motor's up to boxer/nsr IN5817 are what's used but you say your useing 3amp are you useing alot hotter motor's as for adjustable sensitivity while useing resistor controller's as with parma eco's or plus the same rotary switch can be used but with 3watt wirewound resistor's these work fine with motor's mentioned you can get 7 or 10 watt if needed they are soldered seperatly as opposed to the chain of diode's and are wired to be in parallel with existing resistor I use a 35ohm value's starting at 180ohm down to 15ohm in nine step's with this set-up your reduceing the ohm's of the controller resistor your useing. phil.

ahhh, so I might have "off-half-none" over the first three clicks?? LOL oops. I am using anything from scaley standard to flat 6/scaleauto 21k
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Gotta say a massive thanks to all that have contributed in this topic, i now have a finished piece, cant wait to test it early Feb at East Devon.

Thanks people
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