Last Month the Japanese try to retrive this mod a little bit more. They played in the at 2pm CET. At the moment the gametracker,com Server Monitorring is off. Hope soon they turn it on. The ranking seems to work.
Registered Member #727 Joined: [ 10:25 ] [ 12 Nov 2004 ]
I think I actually got it now. Look here:
Now C is the coil I want to switch. The three contacts come from the decoder. + is always connected, and either one of the - contacts or none of them are connected (never both at the same time). Now when one of the - contacts gets turned on, there'll be a current through the resister with value R connected with the -, which will cause the corresponding PNP transistor to open. Then, current can flow from the + contact through the coil C to the - contact (assuming conventional current flow, you smartass).
The one point that really remains a difficulty is to find out the value for R, which depends upon the transistor I'll be using, which will, in turn, depend on what transistor my favorite electronics store has available.
Do you have a better solution, preferrably only involving diodes (because I have a lot of them lying around here)?