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Gosh, yes, and I do find things -- coupler springs, the odd wee screw that had attempted orbital flight just as I was inserting it with tweezers into its proper hole, air hoses, etc.:D

The wallpaper on that column is interesting. I think I see where the column is on the plan. Will it get converted into a building of some sort?

Yep, I hear you, Paul. I can build the circuits and follow how they work. I can even design simple ones for specific needs on my layout. But the guys and gals who design the modules and like on the...

Sounds like a bad LED then.

You can contact Atlas (they bought the LL line) to see if they have replacement light boards or just order an LED online from places like Digi-key or Mouser. A golden...

Okay, it's a current-limiting resistor then. So the light is an LED. Resistors are less likely to fail than an LED. So go through the steps above.

Isolating one leg of the resistor to read...

Is this decoder equipped or a stock LL DC lightboard? What you think is a resistor might be a diode. Are there color bands around the component?

Do you have a digital voltmeter? Can you isolate...

Once had a restaurant like that in downtown Seattle. Forty years ago. Cool place.

This one's in Prague, eh? I'd suppose if one said there, "Check, please" in the native tongue, it might raise a...

Heiko and TD are quite a few (!) levels above me, Steve. I don't design the things they design. Difference between a tech (me) whose vocation involves electronics and a couple of engineer types who...

Is this part of the WiFRED system?

Perhaps if it was a flat car with steak pockets.

Get it, "steak" po....YIPES! Wombat attack!:eek:

I use a set of feeders on every piece of track, including turnouts. I don't trust rail joiners, which are just another source of impedance.

Voltage drop in DC on account that smaller diameter 22AWG has much greater resistance (actually, in the case of DCC it's impedance to the current due to the self-inductance quality of the wire)...

Hey, Tony's at least looks like a kangaroo! Quantas' looks like the unfortunate and poorly disguised mating of a swordtail with a kangaroo.:lol: So much for the cost of art school. ...

Those are ACI KarTrak plates, an early form of equipment identification.

https://en.m.wikipedia.org/wiki/Automatic_equipment_identification

The ACI system was essentially a bust and out of...

That's a doggone good reason!

Man, I wish BC Rail was still around. ...

Point to point is better.

Oh, good idea! I like that mental picture. Maybe something like NS does, with the 'roo on the sides and a smaller one on the nose.

Or in the cab!:lol:

Plus one on the double stripe. And I believe there's a decal for that, Tony.

IIRC, not necessarily unrealistic, but noticeable. But as it would likely be a solo act, it's not too bad at all. Length is between 65 and 75 feet.

Yard switcher? Not really suited, not enough...

I'm probably not helping, but a J-K flip-flop toggled by an Arduino output passed through my mind. Could J and K handle 12V? Probably just a huge plate of spaghetti and a small wall. And I am working...

Darned quality control department!:lol:

You need a foam cradle of some kind. I believe you can find this online, or make your own from a chunk of foam rubber cut to suit.

Small alligator clips attached to tender wheel axles will work...

Ah. ... I see your point. SIG at 12V, would that overtax the Arduino?

Yes, indeed!

True, they are better at sinking current. But the PWM, if I see it correctly, will only control the gates with a low voltage, and resistors are still to be added.