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Modelling Techniques - Show and Tell Your place to show and describe in detail and with photos how you produced a specific item of modelling. Rolling stock, Building, Scenery or something else related.


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Old 13-03-2018, 03:59 PM   #21
Flashbang
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Quote:
Originally Posted by Steve M View Post
Sorry, I’m having brain fade. I didn’t realise you meant Class 20, thought we were still talking about the 9F and it was some obscure variant! Maybe some wine would help.
The class 20 does make all sorts of whines, squeals and whistles - it certainly doesn’t sound like any of my other sound locos.
Dont worry we all suffer!
In this YT video (not mine) https://www.youtube.com/watch?v=6KBOBsDL7FI you can hear the whine/sequel from the Class 20, from around 16 seconds in and especially when the loco is on the Turntable and ticking over. So does the TTS Class 20 decoder have this noise?
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Old 13-03-2018, 04:18 PM   #22
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You can’t mistake that sound. Class 40 sounds the same.
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Old 13-03-2018, 04:26 PM   #23
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Having watched and listened to Steve's video and the one FB linked to, the whines and squeals are more prominent in the non TTS version, although they are there in the TTS one it is in the background but not as constant as the other,
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Old 13-03-2018, 04:57 PM   #24
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I see (hear) what you mean.
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Old 13-03-2018, 10:16 PM   #25
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Quote:
Originally Posted by brian1951 View Post
And i thought it was me loosing the plot.
If you lose the plot you'll have good company - Steve, looking for his plot

For those enquiring re the turbo whine on the class 20. I was at the Basingstoke show on Sunday, with WTD and BB, and I could hear what I identified as a 20. Sure enough, looked on the layout opposite and there was a pair of 20s (with a 40 further down the layout.
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Old 13-03-2018, 10:30 PM   #26
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He did you know, and they said his memory was going
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Old 13-03-2018, 10:31 PM   #27
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Quote:
Originally Posted by Postman Prat View Post
If you lose the plot you'll have good company - Steve, looking for his plot
I reckon I misplaced the plot in the same place that I lost my marbles. And all I have left is a tenuous grip on reality.

And if I need to hear whining I just go over to the Hornby Forum.
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Old 28-03-2018, 09:55 PM   #28
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Quote:
Originally Posted by Walkingthedog View Post
You canít mistake that sound. Class 40 sounds the same.
I had a listen to some excellent O gauge diesels at the weekend and I recognised that whine on a couple of class 20s - it is there on the TTS as well.

I believe the class 40 decoder will be released shortly so I plan to fit one of those to the Bachmann LMS 10000 I bought from Brian a few months ago as I understand they were fitted with basically the same engine. (Which is why I was looking for 21 pin adapters earlier).

I did get another 9F decoder at the show for my Railroad ĎEvening Starí - usual problem with Railroad, the decoder socket is in the loco rather than the tender so there ainít much space.

I considered extending the wires back to the tender but in the end I unscrewed the decoder socket and cut off the two raised locating lugs on top of the chassis. This gave enough space for the decoder to sit on top of the chassis with the socket and plug tucked between the decoder and the engine mount. I did have to cut a bit of excess PCB off the socket to allow the body to fit over it.

Finally a sugarcube speaker stood upright right in the front of the chassis still allows the body to slide easily over the whole lot once I had trimmed back the lugs on the smoke deflectors that protrude on the inside of the body.

And after all that, I forgot to take a picture.
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Old 29-03-2018, 11:21 AM   #29
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It does fit.

20180329_110703 by Steve Mumford, on Flickr
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Old 29-03-2018, 07:35 PM   #30
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For anyone fitting an 8pin TTS decoder to a 21 pin loco that is very tight on space - to the extent that a 21 adaptor won't fit - you might find this video useful. It might be that you already do this or have another method, but it's useful and well explained none the less.

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