“I have used several test stands and have had issues with most of them.
I made this in an afternoon for under $20. It has no moving parts, no adjustments needed.
It is a stable platform and works on any size locomotive.
Now on to Gary. He’s made a fantastic contribution to blog with his posts (his last one is here).
But now, we can help him. He’s got a question:
“Hi Alastair…… I need some help with electronics…… here’s my problem:
I am trying to lower the voltage to my LEDs to dim them in my signals.
If I attach a 1K OHM resister to the positive side of the LED and connect it to a small 3 volt battery, the LED is dimmer then a LED attached to the same battery but without a resister.
One of the model railroaders who saw my engine yard layout, responded to my query about LEDs and resistors by saying to use a higher OHM resistor.
What I tried was daisy chaining a 1K OHM and a .5K OHM together. I put it on my multimeter and it registered 1.5K OHM….. great right?
When I attached the LED with the combined resistors to the same 3 volt battery…THE LED WAS BRIGHTER!!!
I do not understand that. Can anyone out there explain this to me?
That’s all for today folks. Who can help Gary? Please leave a comment at the bottom of the page if you can.
And thanks to Rusty too.
And don’t forget the Beginner’s Guide if you want to get going on your very own layout.