The Intellibox gives us the opportunity to incorporate the NMRA DCC world of decoders to be among the electronics we put into our beloved Märklin locos and still run them together with our other standard "Märklin-Motorola" decoders on the same track.. This article, contributed by Lars Westerlind, shows how you can do this. Please note that this conversion will not work if you use the "standard" Märklin control equipment as the 6020/6021 units. It only works with the Intellibox or a NMRA DCC layout run on a 3-rail DC. Photos taken by the webmaster while visiting Lars.....
Taking a 3029 to the heights...
Here is another conversion story. I
own two different "two axle 3029", originating from starter
in the late 60's. Plastic shell, no light, one rubber tire, coupling
hooks, and no real prototype. Not the standards I currently can afford;
however, old friends, and good looking (in my eyes: I mean the overall
model, proportions etc).
Why do this conversion ?
With the Intellibox I now have the
opportunity to chose a DCC decoder instead; so I decided to use a Lenz
LE130, together with an ordinary HAMO-magnet for this old SFCM motor.
The cost in all was about DEM 100!
What had to be modified ?
Above there is the decoder to the left,
and the field magnet is on behind. Here you see the field coil / magnet difference.
And here, a view from above
I wanted to add light too. The problem
here is to be able to remove the shell, without getting problems with
the connection to the light. Here it was easy, the plastic shell was in
one part, including the lantern imitations. The plastic was simply cut
with a knife as you see below, holes were drilled in the lanterns and micro bulbs
were inserted. The small part was fixed with double sided adhesive tape; in fact a part of the tape enclosed with the decoder.
The green thing is only my way of
connecting the cables from the decoder with the cables from the bulbs,
without having to solder to near the sensitive parts. In addition
resistors had to be connected in series with the bulbs.