I was at an operating session last week and everyone was swaning over an Espee-style SW1 with all the jewelry and operating lights (translation: First generation General Motors diesel switcher with more headlights than anyone needs, and they all flash or strobe as appropriate). Turns out these were all micro mini LEDs bought on EBAY, of course. They told me what to search for, and I ordered some. Cautionary warning: order product with leads pre soldered!
All I can say is wow! They are tiny! I always figured the smallest ones were huge, and thus shied away from LEDs. You can see they are smaller than the bulbs I got from PBL, and the leads are far longer--a huge advantage with my large fingers in the confines of a waycar. And they are only about a buck a piece. Now to resurrect the sound car project.
Keith Hayes
Leadville in Sn3