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Two identical DEMU’s - Everything Bachmann. - More Practical Help - Your Model Railway Club
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 Posted: Wed Apr 24th, 2019 07:41 pm
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Passed Driver
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Hi All.    When Kernow made the announcement about the release of the Southern DEMU’s I put my name forward,But I had meant to order one of each. But I ended up with two green units, nothing wrong with that?  But of course that means both the units have got the same number.  Not wishing to be misled by a stranger and a youtube Video I am turning to the forum. Can anyone please help?   Best wishes Kevin 



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 Posted: Wed Apr 24th, 2019 08:01 pm
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MaxSouthOz
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Hi Kevin

I know Chris from another life.  I'm sure that if the goods are still in their boxes unopened, he will take one back.

Cheers



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 Posted: Wed Apr 24th, 2019 08:52 pm
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Hi Max  . Thank you for your reply. One of the DEMU’s completely is untouched, the other one Kernow fitted the sound but I have had both from the release date. Anyhow the green suits my complexion :mutley:mutley:mutley. I was going to knock up a non driving trailer, as I would have liked to have a three car unit. :off topicStrangely enough, I had just picked up my iPad to ask you a question. I never intend to tread on toes, but, I have a canny knack of doing so, and as comments were made about my mixing red and brown wire, likewise black and blue wire on my fiddleyard.
So tonight I sorted out some new “ Bus Wire “, stripping the ends is straightforward, it is along the middle of the wire where the droppers are Soldered on it gets a bit messy ??? As I know that you have an aversion for suitcase connectors, would you please advise me, how I can strip the bus with a scalpel without making a mess?
Best wishes Kevin 



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 Posted: Wed Apr 24th, 2019 08:58 pm
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BCDR
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Hi Kevin,

I would imagine that the font would be BR diesel. Gill sans was the font used until 1968. Railtec Transfers will do you a custom set for around £5.00. Railtec-models.com

Use a black transfer patch to mask where the old one was.

Nigel



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 Posted: Wed Apr 24th, 2019 09:25 pm
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Hi Nigel. Thank you for your reply. It isn’t as if they are going to be resold, but I don’t want to make a mess.Best wishes Kevin 



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 Posted: Thu Apr 25th, 2019 12:11 am
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The numbers can be removed with T-cut (cutting polish) or with a cocktail stick/toothpick by gently rubbing until the number has disappeared.

New numbers can be sourced from many places. If you can cope with individual numbers added one at a time, HMRS BR sheets are very useful - you may be able to just remove the last number only of the unit and coach numbers if the fonts match. ModelMaster do sheets of complete number sets for SR EMUs and DEMUs, which have unit numbers and individual coach numbers for the appropriate units.



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 Posted: Thu Apr 25th, 2019 12:44 am
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MaxSouthOz
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I would say, "very carefully" to coin a phrase, Kevin.

But, it can be done.



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 Posted: Thu Apr 25th, 2019 12:49 am
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Passed Driver wrote:
So tonight I sorted out some new “ Bus Wire “, stripping the ends is straightforward, it is along the middle of the wire where the droppers are Soldered on it gets a bit messy ??? As I know that you have an aversion for suitcase connectors, would you please advise me, how I can strip the bus with a scalpel without making a mess?

I use an awl, Kevin.  I slice half the plastic off (one side), and work the awl in behind the remaining plastic.

Then I withdraw the awl and push the stripped end of the dropper wire through the hole it has left.

Then I bend the bare end of the dropper wire over the exposed bus wire.  The plastic back of the bus wire will have shrunk back enough to hold the dropper in place, while I solder them together.

Does that make sense?



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 Posted: Thu Apr 25th, 2019 03:41 am
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Hi Kevin,

Bus wire. Hopefully you used solid core copper wire. The easiest way is to cut it in two, strip back, and use a terminal block. Terminal blocks at the end serve the same purpose and act as connectors for the inter-board bus. Use jumpers made from wire, add crimper spade connectors as required. Connect droppers as required to the terminal block. Pictures of this on my sugar cane thread.

Suitcase connectors (Scotchloks) work fine as long as the humidity is low and the wire diameters are not too far apart. They work best with solid core wire.

If you must solder use liquid insulation to coat afterwards. You will find this in the electrical department.
Nigel



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 Posted: Thu Apr 25th, 2019 05:55 am
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Hi Jeff.  Thank you for your reply. I am really loth to try that with my clumsiness. And that is another reason why  I had the idea of a non driving trailer car.. I can imagine me poking a hole in the side. Best wishes Kevin 



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 Posted: Thu Apr 25th, 2019 06:02 am
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Hi Max . Thank you for your reply. I didn’t mean to go off topic again. That does sound like a good idea, if a bit risky in my hands? I had better do a “ dummy run “ first.  Best wishes Kevin 



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 Posted: Thu Apr 25th, 2019 06:31 am
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Hi Nigel. Thank you for your reply. Ironically as it happens, I have just replaced the single strand wire with multi strand. Apart from anything else in my hands it was a bit fragile. I have never heard of “ liquid insulation “ before, and I have just googled it, and it looked a bit messy? I do have some spade end terminals, but they are a bit heavy for the droppers.   Best wishes Kevin 



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 Posted: Thu Apr 25th, 2019 01:00 pm
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BCDR
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Hi Kevin,

Definitely off topic. Start a new one.

Nigel



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 Posted: Thu Apr 25th, 2019 03:42 pm
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As already said Kevin you can buy replacement transfers and most people would be happy to remove the existing ones and replace but as Max said are you confident in doing that.

Also does it really matter they have the same number as as far as i know your layout is for your private use not an exhibition one so the only person viewing will be you and how many people go out of their way to look at a DEMU number anyway.

Brian



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 Posted: Thu Apr 25th, 2019 04:56 pm
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Hi Brian.  Thank you. That is why I would like to add a trailer car, and just add an adhesive label underneath to identify the set.  Best wishes Kevin 



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 Posted: Thu Apr 25th, 2019 10:30 pm
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For DCC use, I identify all of my Southern EMUs and DEMUs by their four-digit unit numbers. As I have managed (through bargain shopping) to acquire several identical units of 4 CEPs and 2 EPBs, I had to renumber one or more of each type.
This is also important when I am trying to form a consist of these units; I can just read off the unit numbers on the ends of the units, rather than having to pick up two, or worse, four cars to read a label underneath.

Kevin, if you are using these end numbers for DCC (or perhaps a handy hint for anyone else doing the same), change the last digit on the unit end numbers only. How many people are actually going to read the individual coach numbers then point out they are wrong for that unit? Probably somewhere between zero and none!! 

:cheers



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 Posted: Fri Apr 26th, 2019 05:04 am
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Hi Jeff. Thank you for your reply. You are correct. Nobody would bother , although I do regret my being impatient instead of purchasing a different livery. I would like to purchase a suitable trailer if I could get one with the correct electrical Couplings, I will keep searching.  Best wishes Kevin 



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