Yes and the effects bit of modern lights present varying loads which is
also going to mess up the calculation. How about a voltage regulator chip?
Most train supplies have minimal smoothing as thraw chopped dc helps to get
th motors turning. Indeed later on may controllers wiwere duty cycle based
not voltage based.
If you are building a supply around one of the more crude ones, often only
half wave rectifiers were used and I've successfully used briidge rectifiers
to make them into 24 volt psus when I could see.
What is the current usage of these lights, I'd guess not a lot so you might
be able to use a simple series regulator and use the heat sink as a hand
warmer in winter...:)
This newsgroup posting comes to you directly from...
Click to see the full signature.