Sorry to hear about the accident, Joe. I am glad you were able to fix the problem.

Cheers,
Ranjit

The grey ones with the red knobs (#6646, #6647) are made for analog operation. With them you can run current digital locos on an analog layout, too.

Analogue Marklin locos of any age can be run with any of Marklin's transformers, whether they are blue or white. The white transformers have better safety features and conform to modern standards, but a blue transformer in good condition is just as good for running the trains.

For newer digital locomotives from the last few years, only the newer white transformers should be used when running these locos in analogue mode. The reason is that some of the newer decoders can be damaged by the reversing pulse which exceeds the decoder's maximum voltage requirements. Some of the older transformers can produce a reversing pulse which is significantly higher than this limit.

If your digital locomotives are from the 1980s or 1990s they are unlikely to be damaged in this way and you can continue to use your old blue transformers.

Happy new year all!

I also have a 6631 that has suffered a fall



Unfortunately, the dial does not stop at zero anymore and the pilot light does not work. It now rattles...

I have tested it and it still works (a loco will run) however, the reverse function does not work properly.

I am assuming that a part has broken off the back of the dial. I was going to open it up and see if it could be fixed but, before I do, I thought I would check in with the experts.

When you put it back together, what do you use for the rivets/where would you get new ones from?

Many thanks for any help,
Sven

Sven,

When I repaired one of mine, I used a 4-40 screw and nut to hold things together. In metric a 3mm screw and nut should be pretty close. The screw had to be cut to the correct length. I used hardware that I had on hand, that's why there is a difference between the front and back. I only had a couple of thin nuts to that could be used on the underside of the case so I used them in the front and used the thick ones in the back with the screws sticking up.

I have done same, suitable size screws & nuts are perfect.

If you find that the head or nut are protruding more than sitting flush, you can get small soft adhesive rubber pads to attach underneath to give grip and clear the surface.

Steve

To be clear, upgrading analog locos with decoders and using the white analog transformers does NOT make digital features available to you. Your layout will still be analog; you will just be able to run digital locos on the layout without frying the digital boards when you reverse direction.