My Co'Co' (six axles) Märklin diesel locomotives:

Updated 2014-01-12

Märklin 28461 train zet, DB MY 1100, 90 86 00 21 108-4:

Märklin 29660 starter set, NSB Di3a 3.607:

Märklin 3067, DSB 1147:

Märklin 3068, NSB Di3b 3.641:

Märklin 3071, NS/SSB RAm 500:

Märklin 3137, NSB Di3a 3.623:

Märklin 3143 A, NSB Di3a 3.605:

Märklin 3143 B, NSB Di3a 3.605:

Märklin 3143 C, NSB Di3a 3.605:

Märklin 3143 D, NSB Di3a 3.605:

Märklin 37662, JBV Di3a 3.628, previous NSB:

Märklin 37665, NoHAB demonstrator, factory number 2246, later NSB Di3a 3.602:

This locomotive ran in many countries as a Demonstrator for NOHAB, factory number  2246, until purchased by NSB in 1957, ref. Märklin 37665

 

Märklin 37679 Strukton Sweden TMY 9505

Märklin 37686,NSB Di3a 3.602:

This locomotive ran in many countries as a Demonstrator for NOHAB, factory number  2246, until purchased by NSB in 1957, ref. Märklin 37665
This means that the Märklin models 37665 and 37686 are two different versions of the same locomotive.
37665 was while the locomotive was a demonstrator, 37686 was he NSB version, after modifications.
Märklin It seems like my locomotive once had a small accident.

Märklin 37692 A, NSB Di3a 3 618

Märklin 37692 B, NSB Di3a 3 614

The conversions made to these models:
Märklin
locomotive
number
Motor Decoder Functions Additional parts/
remarks
Originally
fitted
Converted
to
Originally
fitted
Converted
to/with
28461 dcm 3* dcm 5*
60901
Delta 60901 f0 = front light change with direction
f1 = current to connected cars via relay
f2 = interior light
f4 = acc/brake delay cancel
 
29660 dcm 5* no change mfx
sound
no change f0 = front light, change with direction
f2 = Diesel drive sounds
f3 = flute long
f4 = acc/brake delay cancel
f5 = release air pressure
f6 = squeeling brakes off
 
3067 lfcm 3* dcm 5*
60904
Analog 6090 f0 = front light, changing with direction 258820 holder for decoder
3068 lfcm 3* dcm 5*
60904
Analog 60924
mfx
f0 = front light change with direction
f1 = light driver end 1
f2 = light driver end 2
f3 = shunt speed
f4 = acc/brake delay cancel
456200 holder for decoder
3071 lfcm 3* 60904 Analog 60904 f0 = front light change with direction
f1 = light in connected cars via relay
f2 = light driver's cabin
f4 = acc/brake delay cancel
258820 holder for decoder
home made relay circuit board
3137 lfcm 3* dcm 5*
60901
Analog mfx
sound
f0 = front light change with direction 3+2
f1 = current to connected cars via relay
f2 = interior light
f3 = drive sounds
f4 = shunt speed
f5 = acc/brake delay cancel
f6 -> = other sounds
437500 dcm motor bogie
437530 motor bogie holder
Modified bulb holders
for 2x 28 volt T1 bulbs
Mono-stable miniature relay
28 mm ESU speaker
3143 A lfcm 3* dcm 5*
60901
Analog mfx
sound
f0 = front light change with direction 3+2
f1 = light driver end 1
f2 = light driver end 2
f3 = drive sounds
f4 = shunt speed
f5 = acc/brake delay cancel
f6 -> = other sounds
437500 dcm motor bogie
437530 motor bogie holder
571460 snow ploughs (2x)
Modified bulb holders
for 2x 28 volt T1 bulbs
28 mm ESU speaker
B dcm 5*
60904
60904 f0 = front light change with direction
f1 = low beam end 1
f2 = low beam end 2
f4 = acc/brake delay cancel
258820 holder for decoder
Modified bulb holders
for LEDs
C dcm 5*
60904
60904 f0 = front light change with direction
f1 = light driver end 1
f2 = light driver end 2
f4 = acc/brake delay cancel
258820 holder for decoder
Modified bulb holders for
2x 28 volt T1 bulbs
D dcm 5*
60901
c91
sound
f0 = front light, change with direction
f1 = interior light (home made)
f2 = horn 1
f3 = horn 2
f4 = acc/brake delay cancel
437500 dcm motor bogie
437530 motor bogie holder
258820 holder for decoder
606471 decoder
602749 sound unit
508600 speaker
207648 speaker box
207649 speaker holder
Modified bulb holders
for 28 volt T1 bulbs
37662 dcm 5* no change mfx
sound
no change f0 = front light, change with direction
f1 = work lights, change with direction
f2 = driving sounds
f3 = whistle
f4 = acc/brake delay cancel
f5 = sound, pressurized air
f6 = brake sound off
f7 = warning lights
 
37665 dcm 5* no change c91
sound
mfx
sound
f0 = front light, change with direction
f1 = light driver end 1
f2 =drive sounds
f3 = horn, long
f4 = Telex end 2
f5 = warning lights end1
 
37679       mfx
sound
f0 = front light, change with direction
f1 = Telex ,end 1
f2 drive sounds
f3 = horn long
f4 =Telex, end 2
f5 =warning lights, end 1
f6 = warning lights end 2
f7 = horn short
8  = acc/brake delay cancel
f9 = Brake sound off
f10 =air
f11 =radio communication
f12 = shunt speed
 
37686 dcm 5* no change mfx
sound
no change f0 = front light, change with direction
f2 = drive sounds
f3 = flute long
f4 = acc/brake delay cancel
f5 = brake sound off
f6 = release air pressure
f7 = flute short
f8 = shunt dpeed
f9  = conductor's whistle
Original function setup
may be changed later
37692 A dcm 5* no change mfx
sound
no change f0 = front light, change with direction
f2 = drive sounds
f3 = flute
f5 = acc/brake delay cancel
f6 = release air pressure
 
B

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