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Offline spitzenklasse  
#1 Posted : 10 April 2008 20:31:07(UTC)
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spitzenklasse


Joined: 06/04/2008(UTC)
Posts: 1,573
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What is the difference between the "soft drive c-sine" in the 39121 item, and the one in my 39120 E-10.2 loco? The pictures of them look the same in the marklin schematics.
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Offline Guus  
#2 Posted : 10 April 2008 21:40:14(UTC)
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Guus

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Joined: 13/10/2004(UTC)
Posts: 2,616
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by Mike:
<br />What is the difference between the "soft drive c-sine" in the 39121 item, and the one in my 39120 E-10.2 loco? The pictures of them look the same in the marklin schematics.


Hi Mike,

The 39120 has the original small C-sinus motor while the 39121 has the new SDS drive.This may not be immediately apparent from the outside but the electric motors have different rotors for instance.
Märklin has a nice explanation of the way the SDS operates on their website.

As a side note the 39120 may be eligible for an update of the electronics because some of these "older" small C-sine drives may suffer from erratic driving behaviour due to sensitivity to voltage drops on the track.

Kind regards
Guus
Kind regards,
Guus
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Offline pa-pauls  
#3 Posted : 10 April 2008 21:56:41(UTC)
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pa-pauls


Joined: 08/06/2002(UTC)
Posts: 1,843
Location: Norway
The model 39120 and 39121 has the same motor wink

It is the driver pcb that is different on the models Cool
Pål Paulsen
Märklin Spur 1 Digital, epoche 3
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Offline Guus  
#4 Posted : 10 April 2008 22:14:23(UTC)
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Guus

Netherlands   
Joined: 13/10/2004(UTC)
Posts: 2,616
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by Pål;
<br />The model 39120 and 39121 has the same motor wink

It is the driver pcb that is different on the models Cool



Hi Pål,

For all I know the motors of the two differ and this is somehow confirmed by the locomotives description on Märklins website.
On the other hand I remember a discussion on which type of motor has been intalled in the former E 10.
If I remember correctly there may be two version one with the old type and one with the SDS albeit with old electronics.

Correct me if I'm wrong please?

Kind regards
Guus
Kind regards,
Guus
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Offline pa-pauls  
#5 Posted : 10 April 2008 22:20:21(UTC)
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pa-pauls


Joined: 08/06/2002(UTC)
Posts: 1,843
Location: Norway
Hello Guus Smile

If you look at the spare part list for model 39120 and 39121 you will see that both models have
a motor with number 230592 so the motor is the same in both models but the electronics are different [:I]
Pål Paulsen
Märklin Spur 1 Digital, epoche 3
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Offline bmcrae  
#6 Posted : 10 April 2008 22:23:06(UTC)
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bmcrae

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Joined: 17/12/2004(UTC)
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Location: Okanagan Valley, BC
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by pa-pauls
<br />The model 39120 and 39121 has the same motor wink


When did that happen? The database has not been updated as it shows the 39120 with a compact C-Sinus and the 39121 with SDS.
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Offline bmcrae  
#7 Posted : 10 April 2008 22:24:44(UTC)
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bmcrae

Canada   
Joined: 17/12/2004(UTC)
Posts: 970
Location: Okanagan Valley, BC
Quote:
quote:Originally posted by pa-pauls
<br />Hello Guus Smile

If you look at the spare part list for model 39120 and 39121 you will see that both models have
a motor with number 230592 so the motor is the same in both models but the electronics are different [:I]



Confusion mode: [size=2]ON
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Offline H0  
#8 Posted : 10 April 2008 22:39:48(UTC)
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H0


Joined: 16/02/2004(UTC)
Posts: 15,338
Location: DE-NW
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by spitzenklasse
<br />What is the difference between the "soft drive c-sine" in the 39121 item, and the one in my 39120 E-10.2 loco?

I opened them both - and saw no difference. Both behave much the same.
My 39120 is rather new and is not sensitive to track voltage changes, but OTOH it has no SDS sticker on the box (which the 39121 has).

My track voltage sensitive c-sine locos (one with big c-sine) will travel to Göppingen later this month - I'll let you know if converted locos behave different than before ...
Regards
Tom
---
"In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
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Offline spitzenklasse  
#9 Posted : 10 April 2008 23:45:41(UTC)
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spitzenklasse


Joined: 06/04/2008(UTC)
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Thank you all! The electronics difference makes sense to me. My 39120 performs well. I figure if it works fine, don't fix it?
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Offline Guus  
#10 Posted : 11 April 2008 00:15:02(UTC)
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Guus

Netherlands   
Joined: 13/10/2004(UTC)
Posts: 2,616
originally posted by Pål:

Quote:
quote:f you look at the spare part list for model 39120 and 39121 you will see that both models have
a motor with number 230592 so the motor is the same in both models but the electronics are different


It's what I've noticed too,but I have my doubts whether the motors always really have been the same.
See my answer on Brians post.




Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by bmcrae
<br />
Quote:
[size=1" face="Verdana" id="quote]quote:Originally posted by pa-pauls
<br />Hello Guus Smile

If you look at the spare part list for model 39120 and 39121 you will see that both models have
a motor with number 230592 so the motor is the same in both models but the electronics are different [:I]



Confusion mode: [size=2]ON


Hi Brian,

I too am confused now. The 39420 Re 4/4I has the very same motor part number:
26..................................................... Motor 230 592.
And this locomotive definitely has the old small C-sine installed.

Since both motors only differ internally and have the same dimensions,could it be that Märklin after abandoning the old small C-sine just didn't bother to give the new motor another part number, because they're interchangeable anyway?

Just my two pennies.

Kind regards
Guus



Kind regards,
Guus
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Offline spitzenklasse  
#11 Posted : 17 April 2008 21:24:27(UTC)
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spitzenklasse


Joined: 06/04/2008(UTC)
Posts: 1,573
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I ran my 39355 Obb 1116 Taurus today, and 39573 103. The original c-sine is a great runner. I doubt we will see many more new locs. with this, unless they are updates of previous ones. They seem to be moving to double cardanic drive. Ok by me I suppose. The 39120 is super quiet and smooth. I'm sure some wil miss the famous Marklin WHIIIIRRRRR.
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Offline spitzenklasse  
#12 Posted : 17 April 2008 21:26:09(UTC)
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spitzenklasse


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I was wondering why Marklin uses the Maxon motor in the dutch diesls (MAK) etc. but nothing else, save 1 scale.
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