Re: Speed control
- --- In z_scale@y..., Cliff Travis <cliff@a...> wrote:
> I believe that I read in one of the messages That the Speedcontrol for
> the 9 volt battery marklin powerepackprovided
> offers excellent low speed control. Is it better than the control
> by the Blue marklin pack?uncontrolled
> If so can it be hooked directly to either the controlled or
> out put of the marklin pack.Hi Cliff. I wrote here:
that I recommend the Joerger Fun Set speed control is ONLY used with
a 9V block battery because it does not have sufficient short-circuit
protection for a stronger power source. So please do not connect it
to the Märklin pack.
I also wrote that I have a prototype version of the same circuit that
IS suitable for a stronger power source, primarily for use in
briefcase layouts. I hope to have news of that product in about two
weeks time. But it needs a smoothed DC supply, preferably regulated;
there are suitable mains adapters available quite cheaply.
I have been toying with the idea of producing a modified version of
the briefcase product that would use a Märklin controller as power
source. By means of high-frequency pulse width modulation (as used in
the latest digital decoders) it would control the speed smoothly over
the whole range. I've made a prototype which works satisfactorily,
but am not convinced that it is worth "saving" the Märklin
controllers when a relative cheap mains adapter works as well. What
do you think.
I am sure there are other commercial products that members will
recommend too! Jeremy.