12vdc control for model trains

I am trying to work out a simple circuit to control model trains.
Voltage is 12vdc and max current would be 700mA
Looking at a darlington pair circuit.
I have some electronics know how but not a lot.
Can anyone point me in the right direction please?

Posted by Mike on 14/03/2004, at 13:30 GMT

12vdc control for model trains

Bernard Babani publish 3 books on model motor control, 1, 555 Projects by E.A. Parr. ISBN 0-85934-047-3, 2,Practical Electronic Model Railway Projects by R.A. Penfold ISBN 0-85934-384-7. 3,Power Supply Projects by R.A. Penfold ISBN 0-900162-96-1.

Posted by Robert Neill (varient412@yahoo.co.uk) on 02/02/2011, at 20:01 GMT