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Offline morsing  
#1 Posted : 12 June 2019 18:37:50(UTC)
morsing

United Kingdom   
Joined: 16/08/2014(UTC)
Posts: 376
Location: Aylesbury, Buckinghamshire

Hi,

I tried following the advice to solder wires to C-track, but the shiny spade connectors do not take to solder well. It just rolls off... Is there a trick?

Thanks
Offline LongHairedDavid  
#2 Posted : 12 June 2019 19:06:16(UTC)
LongHairedDavid


Joined: 04/01/2019(UTC)
Posts: 152
Location: England, Ipswich
Originally Posted by: morsing Go to Quoted Post

Hi,

I tried following the advice to solder wires to C-track, but the shiny spade connectors do not take to solder well. It just rolls off... Is there a trick?

Thanks


Hi there I use a flux pen - I got mine from Amazon (no surprise there!) https://amzn.to/2wOyb4v

Makes soldering much easier.
Long Haired David
AKA David Pennington
A mystified Maerklin Newbie
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Offline Minok  
#3 Posted : 12 June 2019 21:20:26(UTC)
Minok

United States   
Joined: 15/10/2006(UTC)
Posts: 1,929
Location: Washington, Pacific Northwest
I think the use of flux here is a requirement; either paste or oil. Oil is probably a bit less messy; and be sure to clean off any excess flux afterward as it is corrosive. Of course a hot iron as well, so that the time to get the solder to melt is very short and thus no chance of melting the track body in the process.
Toys of tin and wood rule!
---
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Offline Danlake  
#4 Posted : 12 June 2019 21:28:58(UTC)
Danlake

New Zealand   
Joined: 03/08/2011(UTC)
Posts: 1,409
It’s normally very easy to solder on the spades.

Make sure you first apply heat to the spades for 1-2 sec, then come in with your solder.

Apply a small tap of solder to the spade. Apply separately some solder to the wire. Then bring them together.

If it doesn’t work could be the solder iron not hot enough (or the tip is too large) or you are using a wrong solder?

I don’t normally use flux pen for these spades.

Best Regards
Lasse
Digital 11m2 layout / C (M&K) tracks / Era IV / CS3 60226 / Train Controller Gold 9 with 4D sound. Mainly Danish and German Locomotives.
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Offline Purellum  
#5 Posted : 13 June 2019 00:15:58(UTC)
Purellum

Denmark   
Joined: 08/11/2005(UTC)
Posts: 3,021
Location: Mullerup, 4200 Slagelse
Cool

I'm not sure if you're soldering directly on the taps on the tracks, or on the spade connectors ( 74995 ).

The connectors should be easy, even though the are meant to be crimped; on the taps a bit of sanding with very fine sandpaper can help.

In both cases pre-soldering makes life much easier.

Per.

Cool
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Offline Bigdaddynz  
#6 Posted : 13 June 2019 06:27:04(UTC)
Bigdaddynz

New Zealand   
Joined: 17/09/2006(UTC)
Posts: 16,566
Location: New Zealand
Cut the spade connectors off and solder the bare wires to the lugs underneath the track. Job done!
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Offline morsing  
#7 Posted : 13 June 2019 08:37:37(UTC)
morsing

United Kingdom   
Joined: 16/08/2014(UTC)
Posts: 376
Location: Aylesbury, Buckinghamshire

Ok, maybe my terminology was wrong, didn't know what the little buggers are called.

I'm trying to solder wires to the shiny taps/lugs whatever they're called, underneath the track.

Is the flux pen any different to normal flux?

I will try and sand them a bit and pre-solder.

Thanks
Offline Bigdaddynz  
#8 Posted : 13 June 2019 10:21:43(UTC)
Bigdaddynz

New Zealand   
Joined: 17/09/2006(UTC)
Posts: 16,566
Location: New Zealand
I use resin core solder to solder wires to the track lugs. This solder has flux embedded in the core of the solder wire. You just need to tin the end of the wire and the lug itself with solder then solder the wire to the lug.

Some fluxes can be quite corrosive - I have a nearly full bottle of flux that my Dad had (and he has been dead for 41 years now) and it is very corrosive. I tried using it to solder some power wires to some brand new K track pieces. The track corroded severely where the flux was applied within a couple of weeks. Better to use the resin core solder, that doesn't have the corrosion issue.
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Offline David Dewar  
#9 Posted : 13 June 2019 13:04:13(UTC)
David Dewar

Scotland   
Joined: 01/02/2004(UTC)
Posts: 6,631
Location: Scotland
As Dave says just tin both the wire and the lug then make sure your iron is hot and hold wire to the lug and place iron on top of wire and it will join.

I am not good with a soldering iron but the above works for me.
Take care I like Marklin and will defend the worlds greatest model rail manufacturer.
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Offline morsing  
#10 Posted : 13 June 2019 14:21:21(UTC)
morsing

United Kingdom   
Joined: 16/08/2014(UTC)
Posts: 376
Location: Aylesbury, Buckinghamshire
Thanks, sanding and pre-soldering did the trick:

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