Have re soldered all connections, checked all sub circuits for continuity, light bulb lights when directly hooked up by passing device in gray wire from connector plug under cab and swapped out tender with 2 other, same type engines, and they work correctly. Manufacture has no answers. The problem stays with the locomotive, as swapping other working tenders does not correct the problem. Problem is in neutral, light does not come on dim, and when in forward, only comes on dim. Reverse light works OK, but headlight is out instead of dim. When hard wired by passing some sort of device in series with the gray wire to the headlight, light is on all the time on what appears a little less than bright except when cancelled by F-0. The device in the line must be bad, but don't know what it is or where to get one, except to order a complete wire harness, and as of now don't even know if it's available. It is medium blue in color, is about .060. dia, about 3/16" long with 3 black bands in the center and a black band on each end, one of them a little narrower than the other. I thought it might be an inductor since all colors are the same. Meter shows a resistance of .10 on the 20K scale when checked.  This is the only thing I can think of as to be the problem. Any answers out there. Decoder working fine. BILL

Thank you Len; that helps quite a bit. Bill

Thanks everyone. Found some info somewhere with a chart I down loaded that has all wire sizes listed with there wire sizes in thousandths and current specs. Seems 30awg is a small size to handle short circuit spikes. Will keep looking. DCC Doctor likes 29 gauge for main truck pickup. Litchfield sells 30 gauge in all colors, but have to buy all of them. Not a bad price though. Bill

Jonathan; Northeast Railfan site has many pictures of B&O cabooses. One shows large emblem(36") to the left of the bay and the smaller seem to be to the right. That's why I thought it might be a circa thing. Seems as though they began with the larger to the left. I Goggle B&O caboose to bring up many photos of different schemes, not many posted with year and can't read most reweigh and paint dates.  Bill

Sorry; should have known better. The circa I'm after is post WW2 till the end of steam. I only have steam locos for the B&O, C&O,PRR and N&W. Have a full collection of PRR, and will try to answer any PRR related questions. Bill

Any one know what colos were used on the caboose markers for the C&O and N&W. Bill

Can't find anything but buss wiring and feeder wiring. Was asking about inside the locomotive. Thanks for the link. I'm a model railroader and don't know that much about the internet. . Bill

Thanks Jonathan: Will have to make a few changes.  A tip I read a long time ago said to use a lead pencil to cover over the painted lens surface when dry, and the graphite gives a glass look. I use it all the time and love it! If you get to much coverage, just rub with your finger until satisfied, or wet finger, and rub it off, and try again. I only do this with flat paint and don't know how it will work with glossy surface. Also deepens the color to look more realistic for daytime appearance.  Bill

What are the sizes of wire used in DCC applications for HO size decoders and motor connections. Can't find this info on the form search. Bill

I know what you mean. Being a Pennsy freak, they took quite a while to get the new stencils to all the paint shop locations some times. The smaller logo seems to be a circa thing from my research. The last I read was that they started stretching the wheel base to19' in 1942. This really restricts me to the arrangement to use. By the way, the correct color on the lens on markers for the B&O and C&O is driving me nuts. Can any one in lighten me.   Bill

Thanks again to all; I decided due to the wheel base and step configuration(already had to spread the wheel base as it was 6" short of 15')to use the 36" logo. Going to have some made at 34" to 35" also as it might look a little better on the model. It's a Trains Inc import I've had since the late 60's or early 70's and just getting around to detailing and painting it. I believe the 27" dia. suggestion was very close for the smaller herald.  Bill

Thanks guys; the 36" herald appears to be correct for early circa, but noticeably reduced later. Thought around 30" would be a start, but wondered if some one new what was really used. Measured a Fox Valley car and it is 36". Going to reread some of my Sunshine Models data to see what they used. Come to think of it, I have a Tangent Models gon to measure. Maybe they standardized on one size for everything. Bill

Lettering a few cabooses for my EM-1, and need to know the size of the "linking 13 states" herald used by the B&O. The larger one appears to be 36" in dia. How large is the slightly smaller one. When did the smaller one replace the larger one. Having some decals made. Bill

Give soundtraxx a call. They are great people to talk to. Bill

Richg: Thank you for the circuit site. I have been wondering where I could find something like this for a long time. This is one of the issues that has caused me to keep putting off some of the projects on the shelf. This brings the EM-1 project front and center . Halleuyah. Bill