[sdiy] OT: TTL logic, trains and interference

[jorgen.bergfors at idg.se]

>I have always been facinated by trains.

Yeah, me too.

>I was a member of the Sumpter Valley Railroad for a while.

Cool. I was a member of Upsala - Lenna Railroad, a preserved line here i
Sweden (see http://www.srjmf.se/). Hmm.. there used to be a page in
english.

We have speeders similar to yours, which are equipped with VW engines. They
are dangerously fast, considering the line is three foot gauge. If you dare
to drive flat-out, they will do 100 km/h (over 60 mph). Here is a picture
of a less powerful type: http://www.srjmf.se/pictures/dressin1.gif

/Jorgen