All good thoughts and ideas on this issue. It was a whopping $11 for the whole order so whether it works or not won't break the bank. I did think of one more thing concerning multiple use, in that the units may work on the same frequencies so running 2 loco sets might be a problem. I doubt they have the circuitry to pick an unused channel like routers can do. While we are at it, this whole project started because I had to replace a lamp in this MTH set, and after spending a day removing screws from the the chassis, (it seemed) I learned MTH wanted $4 not including shipping for a 3mm incandescent lamp for this loco. I took a chance on a bundle of 10 for $15 including shipping from within the US off epay. They fit in the MTH holder, and work perfectly, they are rated at 6.3 at 70ma which is about 90 ohms and the MTH bulbs are rated at 6 V at 60 ma, which for a 90 ohm bulb in this replacements case, would draw 66ma with the 6 volts from the loco and only 30mw different in heat. They are probably all the same bulb. The only issue for some, is you have to cut off the old dead bulb and splice the leads from the new on into the leads coming from the connector. The new bulbs come with a generous lead length and their attachment point at the bulb is sealed.
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