I cannot call myself professional - I just love model trains and assemble railroad in my house from time to time. So consider me a noob :) I have DC layout and I don't have any DCC controls.
From time to time, I buy myself a used DC trains from ebay - those I'm interesed in as models.
I bought used Marklin BR 24 058 H0 train.
Seller told me, that it's DC, not a DCC train.
I tested it on my layout - but it's running only backwards, despite of the polarity of my layout.
Thats how loco look like from outside:
I decided to check, whats inside the loco and unscrewed it.
I'm not professional, but I assumed, that this H0 loco should be from 1950-1970s. But inner components doesn't look like that they are from that era.
So here are my questions:
1. Is this loco DCC?
2. Is it possible to fix the issue and make it run in both directions? (by changing polarity of network)
Thank you for you answers!
KylethelionSeller told me, that it's DC, not a DCC train. I tested it on my layout - but it's running only backwards, despite of the polarity of my layout.
Welcome to the forum. Your posts will be delayed in moderation for a while.
That's terrible. There is one on Ebay from 1959 and if this link works, it's innards look nothing like that.
I'm not a Marklin expert, but I thought they were 3 rail AC. The soldering does not look professional to me.
Henry
COB Potomac & Northern
Shenandoah Valley
Henry is correct. Here's a link to the same locomotive on Trainz.com. The website states " It runs on Marklin 3-rail track only".
If it says "Marklin" then it's generally 3-rail AC. I found that out when I purchased a Marklin NYC caboose. I was able to convert it to DC by switching out the trucks. It would be a bit more extensive to convert the locomotive to DC.
Tom
https://tstage9.wixsite.com/nyc-modeling
Time...It marches on...without ever turning around to see if anyone is even keeping in step.
If it were an original 3 rail AC Marklin and you put it on your DC layout, you would get an immediate short and it would not run at all, as both wheels have the same polarity. It also seems to be missing the conspicuous pick-up "shoe" for the 3rd rail. Thus, it seems that a previous owner modified it to run on 2 rail DC. The original Marklin AC mechanism uses a short high-voltage impulse to change directions. I have no idea how this is solved in this case.
I would try changing the polarity. My prediction: Now it will run only forward. I am not sure I would call that an improvement, but it would add another piece to the puzzle.
JW
I think Bubba tried to kludge a 3 rail AC loco into a 2 rail DC one and messed up, so decided to sell it to an unsuspecting victim. Depending on the circumstances (ie: E-Bay, train show, hobby shop. some guy who placed an ad online/in the paper) you might try and get your money back. The best alternative is go to your local hobby shop and see if they can recommend someone who fixes sick locomotives.
You have an old 3003 model. I used to own one of these locos. Marklin may have made two rail versions of this loco under its HAMO line or later under the Trix brand.
The electronics in the loco suggest either an electronic reversing unit or some other modification. The rest of the guts look like the AC unit. A shot of the underside of the loco and the box would tell us quite a bit more....
If you aren't getting a dead short there has been some modification or it could be a HAMO version that has issues....
Good luck,
Guy
see stuff at: the Willoughby Line Site
Hello All,
to the forums!
I have converted a modern Märklin 3-rail AC locomotive to 2-rail DCC.
Well, that was easy...relatively...
This loco is a diesel so all that was needed was to swap the Märklin trucks with the corresponding Trix and solder the truck pickups to the correct pads on the decoder.
BEAUSABREI think Bubba tried to kludge a 3 rail AC loco into a 2 rail DC one and messed up, so decided to sell it to an unsuspecting victim.
I concur that you might have been sold "A pig in a poke."
Paying someone to correct the previous attempt at DC conversion could cost you more than purchasing a different unit new.
I suggest you try to get your money back through eBay before opening the proverbial "can of worms."
Despite if the seller lists a "No Refund" policy in certain situations of deception by the seller you do have recourse.
Most of us in this great hobby at one time or another have fallen victim to deceptive sellers and/or deals that seem "too good to be true."
Good luck, and as always...
Hope this helps.
"Uhh...I didn’t know it was 'impossible' I just made it work...sorry"
An AC motor can run on DC power, but will not change direction with a polarity change. It would seem someone altered the engine from three-rail to two-rail, but didn't realize that.
If you decide to keep the engine, it is not very hard to install a bridge rectifier so the AC motor changes direction with the DC polarity change. I was a three-rail O scaler long ago, and did it myself a couple of times (using the old "Fricko Converto"). A hobby shop could probably do it for you for the price of the bridge rectifier plus a small labor fee.
wjstixI was a three-rail O scaler long ago, and did it myself a couple of times (using the old "Fricko Converto").
Fricko also made a 'Transverto' that attached to your 18VAC Lionel output and converted it to polarity-reversible DC...
I have some o scale 2 rail DC equipment, and use a Lionel power source that is AC. I bought one of these to concert AC to DC:
https://www.ebay.com/itm/172379485659
Simon
Bridge rectifiers can be pretty cheap online, here's one I found on Ebay for $1.20 made for 12V:
https://www.ebay.com/itm/275032207581?var=575317108111
OvermodFricko also made a 'Transverto' that attached to your 18VAC Lionel output and converted it to polarity-reversible DC...
If Fricko is out of the market, seems like a business opportunity for somebody
The Semi-Legendary modeler Darth Santa Fe's video on converting a Maerklin AC loco to DC
Marklin 3030 Electric Repair and full DC Conversion - Bing video
Another way
Simple magnet only Marklin DCM Motor Conversion from AC to DC (for digital prep) - YouTube
And, maybe the easiest of all from Marklin Digital Conversion Parts – Ajckids (5 pole will give better performance than old three pole) and Converting a Marklin H0 motor for digital use? – Ajckids
Just to clarify my comments about the "Fricko Converto"...I wasn't saying that the OP should try to track one down for his HO engine, I was just explaining that I used one (about 40 years ago) to convert some Lionel AC engines to DC using a bridge rectifier, and it's not hard at all to do. Back then, that was new - or at least to most people, relatively obscure - technology; now, you can buy bridge rectifiers online for a few bucks that will do the same thing.