N Scale Controllers

[ezdays]

voltage is not the big issue here as don said it can be varied the big problem is the fact that teck2 was only a half wave rectifier you need to use or get one with a full wave rectifier the motors will run cooler and last longer, the other motor killer is week magnet's.
Jim

Regulation is an issue, especially with a half-wave rectifier. Regardless, there is always ripple to contend with, where the  peak voltage is higher than the DC output (kind of like bumps in the DC). I put an oscilloscope on the output of that single output MRC Controlmaster X just to check the ripple and there was none at no load, but as I remember, around 1 volt at full output and half-load. Those two 5 amp supplies that I got from Amazon are what is called switching supplies and don't require a transformer. They are very well regulated with little ripple and have a digital readout. The downside is that they cannot go below 3 VDC. Great for accessories and lighting but not running trains.