Re: Testing a 3 rail locomotive


":::Jerry::::" <me@xxxxxxxxxxxxxxx> wrote in message
news:4364cb04$0$38643$892e7fe2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> <squidk@xxxxxxx> wrote in message
> news:1130675799.000295.178730@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> Is there any way of testing a 3 rail locomotive without having a 3
> rail
>> layout?
>>
>> I have an old HD 2-6-4 4MT and want to know whether it runs. I only
>> have a 2 rail layout so need some help here.
>>
>
> Sorry but is this a real question?...
>
> See that silver strip under the loco, in the middle between the
> driving wheels, that is the pick up 'shoe' and is what you need to
> supply power to or the return from - if you want to see it running on
> your layouts track-work you will need to remove one pole (ve + or -)
> of the power supply to the track (both wheels of an axle are common
> and thus a dead short), you will then need to either have a centre
> 3rd rail or some form of fly lead connected to the afore mentioned
> centre pick up.
>
> The other option is to modify someone like the Peco Loco testing
> 'rolling road' to incorporate a centre 3rd rail - which is the course
> of action I would suggest!
>
>
Just one little question- is it a Hornby-Dublo third-rail loco? I recollect
that some of the continental manufacturers used AC rather than DC with their
third-rail or stud contact locos, and a 12V dc supply wouldn't work with
these.
Brian


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