Just A quick PS Guys: I hooked up the corresponding red leads and black lead to my old old Bachmann 4-8-4 Santa Fe Freight.....The Sound works!! Almost woke up the wife though..LOL.. the Little adjustable resistor(pot) on the lower rear side adjusts the volume...Now I got sound on the dc side of the track layout!! THANKS ALL!!!Darrell

Toooo Cooool,I knew you guys would know!!!Thanks for all your help with posting Gene ,Rich,Yampa Bob and Alex for knowing what my antique really is!
I think I got the pic resolved with your help too it shows up now! Thanks Very Much, I'm A believer! Darrell

Thanks Rich,I put a photo of the tender on Photo bucket,I think this is the url     ,Also I found a pic of the tender w/the right # and road on the Inet its a 4-8-4 burlington (cb&q) route and it is a oil tender.    .Thanks again, Darrell

I forgot to tell you the plug is hard wired to the boards no socket or connector inside.
I do have a pic if you want me to e-mail it? I can't seem to upload it here. Darrell

Hi ,Thanks for the reply.  I don't know too much about is steam locos,so appreciate any help I can get..The tender has 2 trucks and 8 wheels on each one ,very long,the plug is black and flat with 3 wires attached, inside is 2 speakers and 2 circuit boards marked Kader 8010 and 8011there is several capacitors, transistors and various diodes and resistors. Its numbered 5601 and has the Burlington Route patch on the side..It may be either an oil tender or an aux water tender,I can't tell, again ignorant of steam. Thanks again! Darrell

Hey Mr B ,,I have a Burlington northern tender, 16 wheel long haul, It has what appears to be a decoder in it with 2 speakers and a different plug, Black ,than what is shown on most of the  Bachmann pics(yellowish plugs)For Bachmann.It says Kader 8010 and a second board marked 8011, is this an old version of factory sound/dcc it was given to me by a friend,but he doesn't know any more about it than me. I'd sure like to get some info on it to put it on one of my Bachmann  steam trains...HELP!!