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GP 7 - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Fri Jul 6th, 2012 08:40 am
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Petermac
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All very clever stuff this DCC "thingy".  I'm still learning the simple stuff at this end - currently trying to find out how to access Functions above 9 on my Set 100 ..............:???::???::???::???::oops:



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 Posted: Fri Jul 6th, 2012 09:10 am
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MaxSouthOz
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:mutley    Press the + button for another 9 and again for another 9, Peter.

You should see three stripes on the screen as you go.   :thumbs



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 Posted: Fri Jul 6th, 2012 09:13 am
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Petermac
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Ah - thanks Max - I'll see what happens ............

Presumably I press the " - " button to drop back to the previous ones ........:roll:



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 Posted: Fri Jul 6th, 2012 09:35 am
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Yep.  Or you can keep going round and around with either the + or the -  .



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 Posted: Fri Jul 6th, 2012 12:06 pm
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Petermac
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Are the brass things in this shot flywheels Max ?

If so, I'll she's a beautiful runner ...........:roll:






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 Posted: Fri Jul 6th, 2012 01:57 pm
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Yep, Peter.  Standard equipment - a bit redundant, though.

Flywheels are a hangover from ancient times when model trains ran on DC.

They don't actually have any purpose with DCC, although the systems have embraced them - particularly the BEMF.



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 Posted: Fri Jul 20th, 2012 10:57 am
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OK.  So I've installed the cube speakers and the decoder.



You can see where I've had to solder on two purple wires for Aux 5 and Aux 6.  I've used them for the ditch lights which flash alternately when you blow the horn.

As the locking tabs were broken off when I got the loco, I've drilled two holes each side so I can pin the body.

Getting closer.  ;-)



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 Posted: Fri Jul 20th, 2012 11:27 am
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Petermac
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Are there 2 speakers Max ?

It's going to blow your eardrums if so .................:shock::shock:



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 Posted: Fri Jul 20th, 2012 11:47 am
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Yep.  You can see them in the ceiling, Peter.  They are 15 x 10 x 6 mm thick.  8 Ohms impedance, so I've wired them in parallel as the Select decoder works best with 4 Ohms.

I've turned them down to 75% on the engine sounds and left the horn full on.  You get a richer sound that way.

I'm just using the generic sound project the decoder came with, so it could be even better once I make some changes.

I've just finished pinning the body, so all that's left are the hand rails.



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 Posted: Fri Jul 20th, 2012 01:22 pm
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Petermac
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Don't kerep us in suspenders Max - how long before we hear her ? :roll::roll:



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 Posted: Fri Jul 20th, 2012 01:29 pm
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Hopefully tomorrow, Peter.  I've got to find a suitable sound project. modify it and upload it.

Then video it and up load that - after work.

I'll be as quick as I can.  :cool:



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 Posted: Sun Jul 22nd, 2012 12:55 am
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I'm sorry that I haven't a better video, but we have a Club day today and I'm a bit snowed under.

Here's a comparison between the cube speakers and a round speaker in its enclosure.

It's not the right sound project, but it still shows that the little cubes can hold their own against the bigger, round ones.

I reckon it's a mellower sound and once I balance the volumes of the various sounds and turn the whole thing down a bit, it will be a nice result.

Anyway, in the meantime . . .

http://www.youtube.com/watch?v=iwJYUAXMsLY

 



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 Posted: Sun Jul 22nd, 2012 08:33 am
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Petermac
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As I said elsewhere Max, I really love that deeper "richer" sound from the cube speakers.  To me, it's just like the big heavy engines they had.  You can imagine the beasts rocking on their mountings at a tick-over then smoothing out into a powerful clunking as revs are increased..............:thumbs

From here, just the sound suggests they are huge.........



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 Posted: Sun Jul 22nd, 2012 08:42 am
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Thanks, Peter.  We had our Special Interest Group meeting this afternoon.

There were three of them sitting on the dining room table, grumbling away.

You are right.  The cube speakers were voted "Best in Show."   :lol:



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 Posted: Sun Jul 22nd, 2012 02:09 pm
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All but done.  A new set of handrails.  Couldn't resist a photo.

A bit of a touch up of paint over the pin holes, then off to the programmer and then to the movie set.  :lol:



I'm happy with that.



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 Posted: Sun Jul 22nd, 2012 02:41 pm
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MaxSouthOz wrote: ..............................................



I'm happy with that.


That's a pity - I could probably have found it a home in Europe ..............:roll::roll:



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 Posted: Sat Jul 28th, 2012 07:27 am
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Here she is having a run on the layout - still with the Alco sound project, but you'll get the idea.

http://www.youtube.com/watch?v=0CA-CL56Iig




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 Posted: Wed Oct 23rd, 2013 11:16 pm
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Great Northern Geeps, wonderful, and a really nice repair job. Most GP-7's (634 and 635 for example) had them on posts on the footplate ahead and either side of the nose as there was an awful lot of piping around the coupling. Federal regulations also called for a minimum height of 36" above the rail head. They also had Mars lights as well - the lower of the two "headlamps". Most decoders have this option. Both ditch and Mars lights were used for yard work. Not all GNR GP-7's had ditch or Mars lights, in fact I think ditch lights were ditched or not used when a Mars was installed. Have to check. Mine (a Proto 2000) has a Mars but no ditch lights.
Most GNR GP-7's ran with a winterization hatch for most of the year, scratch build, no commercial offerings come close.

Nigel (GNR somewhere North of Wanatchee, 1955).



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 Posted: Thu Oct 24th, 2013 03:37 am
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Thanks, Nigel.  She's still going. :thumbs



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