Some time ago in 2013 I purchased from Keesmarklin a used but in as new condition Marklin 37058 Br 59 Steam loco. I had always intended to put sound into this loco and a few years ago I purchased the replacement tender chassis and sound box, and former forum member Pål Paulsen ( pa-pauls ) kindly sent me a spare 21 pin decoder MTC from the 37054 Württemberg K loco which he did not need (thanks Pål).

https://www.marklin-user...-2013-Edition#post406407 (Pål's offer was in post #647 of that thread).

I'm in the process of figuring out the wiring on the 37058 and where everything goes (not sure what the brown wire on pin 7 on the existing decoder does as it doesn't seem to go to chassis ground - and, Yes I'm aware of the diagrams and pictures on the HGH website).

I thought I would check the available Loksound 4 project files on the ESU website, but I've found there is nothing for the Br 59 / Württemberg K. Does anyone have any idea what can be used as a substitute? I know the Br 59 is a 2 cylinder loco, could I use another 2 cylinder project file such as the Br 52?

I stand corrected here but the BR59 I believe was a 3 cylinder loco. In the ESU sound files for Loksound 4 is this on Page 4:

Steam locomotive German Baureihe 58/ BR58.3, 3 cylinders; configurated for Gützold BR 58.3

Article numbers:
55433, Loksound V4.0
65433, Loksound V4.0 M4
55833, Loksound Micro V4.0
55533, Loksound XL V4.0
55333, Loksound L V4.0

Württembergische K

The württ. “K” and later type BR 59 was the only German six coupling loco.

This locomotive for heavy good trains was built for the Geislinger Steige by the Maschinenfabik Esslingen.

The work on the first of there four cylinder locos started in 1917.

Because of the World War I the completition of the first three machines was delayed. These first machines have a little boiler body with a dome and with only one sand box.

The whole series consisted of 44 locomotives of which the last ones were delivered in 1924.

Most of the machines had one great sand box with two filler shutters under a covering in front of the boiler and a smaller sand box behind the dome.

Besides the Geislinger Steige the strongest Deutsche Länderbahn loco with 1.900 hp was put into service at the Austrian Semmering route.

Because of the electrification of the Geislinger Steige these slow-speed machines were scrapped from 1953.

I actually converted my BR59 to sound probably 10 years ago with a Loksound 3.0 M4 but I can't remember what project I used. I probably used the wrong one - I will have to check mine now and change it!
For a LS 3.0 I think the BR18 sound project is probably the best choice. It is of a similar size and also 4 cylinder compound engine. None of the other projects are 4 cylinder compound.

Since you are using the Loksound 4 you have some other options though, I think your two better options are:
Bavarian G 4/5 H
Royal Württembergian State Railroad Class Hh

Eric, does your BR59 conversion use the 21 pin MTC board from later BR59's / Wurtt K's or did you use the MTC board from Luessi? - https://luessi.ch/eshop/...th=2&product_id=2404

I'm a little unsure of some of the connections on the 21 pin MTC board I have, despite the picture on the HGH website (https://moba-hgh.de/modellbahn/d...estueckungs-schaltplan-3 ).

I wasn't able to trace the brown wire on the BR59, it doesn't go to the chassis ground as you would expect. I suspect it might be the return wire for the two front lights (usually coloured orange), as both lights are able to be individually switched with separate functions with the factory decoder - which accounts for the yellow and gray wires.

The other wires are:

Thin Red - smoke unit contact
Thick Red - Pickup Shoe
Blue and Green - Motor wires

Edited by user 06 May 2020 11:00:17(UTC)  | Reason: Not specified

Just a quick note that the original decoder board contained the resistors for the LED lights.

When wiring in a new decoder, ensure you include a series resistor with the LED lights. If you use a 3rd party PCB such as the Lussi, it is not necessary as the PCB has the resistors on it.

edit: Drop me a PM if you want, I can send you my K project. I used the Bavarian G4/5 H project.

Edited by user 14 May 2020 01:35:14(UTC)  | Reason: Not specified