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by Roger (RJ)
Tue Jan 29, 2019 9:47 pm
Forum: DCC Forum
Topic: Need help interrogating some decoders
Replies: 25
Views: 428

Re: Need help interrogating some decoders

The decoder tester is misnamed in my opinion. It doesn't actually do any testing. It's more like a substitute loco with various decoder sockets on board, a motor and indicator lights to allow almost any decoder to be fitted temporarily so that a DCC controller can be connected to it to test the deco...
by Roger (RJ)
Sun Jan 27, 2019 3:33 pm
Forum: Electronics
Topic: Fun with Arduino - a Series of Introductory Videos
Replies: 24
Views: 725

Re: Fun with Arduino - a Series of Introductory Videos

That table of variables may not make sense to a lot of people in the UK as it is using full stops, aka periods (.) where we would use commas (,) so -32.768 for instance, would be written as -32,768 or -32768 with no comma or full stop.
by Roger (RJ)
Thu Jan 24, 2019 1:08 pm
Forum: DCC Forum
Topic: Need help interrogating some decoders
Replies: 25
Views: 428

Re: Need help interrogating some decoders

The only difference between the 8 pin an 4 pin decoders is the number of wires that it has. So X9659 is the same decoder as the R8215/R8249 just with a different plug and wires.

These old decoders are only fit for the bin imho although the blue dot ones may be usable.
by Roger (RJ)
Wed Jan 23, 2019 10:02 pm
Forum: DCC Forum
Topic: Need help interrogating some decoders
Replies: 25
Views: 428

Re: Need help interrogating some decoders

The 4 pin ones are Hornby decoders and quite old by the look of it.
I can't identify the 8 pin one with the covering on but would guess Hornby by the style of plug.
by Roger (RJ)
Wed Jan 23, 2019 2:42 pm
Forum: DCC Forum
Topic: Need help interrogating some decoders
Replies: 25
Views: 428

Re: Need help interrogating some decoders

If you could post pictures, I'm sure we'd be able to identify them at least.

The four pin decoders will almost certainly be Hornby. They are the only 4 pin ones that I have ever seen or heard of.
by Roger (RJ)
Thu Dec 27, 2018 11:25 pm
Forum: DCC Forum
Topic: First dcc converted loco start stop
Replies: 13
Views: 322

Re: First dcc converted loco start stop

It could possibly be that the motor is taking more current than the decoder is able to supply, causing it to shut down to prevent it being damaged. Another possible cause is dirty wheels preventing good current flow from the rails. Some models are more affected by dirty track and wheels than other m...
by Roger (RJ)
Thu Dec 20, 2018 11:21 am
Forum: General Model Railway Discussion / News
Topic: Goo Gone
Replies: 7
Views: 415

Re: Goo Gone

Just use Isopropyl alcohol (IPA). It's about the purest and best cleaning fluid for track, wheels and general degreasing.
by Roger (RJ)
Thu Dec 13, 2018 5:15 pm
Forum: DCC Forum
Topic: Blown TTS Decoder - what did I do wrong?
Replies: 25
Views: 707

Re: Blown TTS Decoder - what did I do wrong?

Test each wire individually from the socket to the motor contact to see if there is a loss of continuity.
by Roger (RJ)
Wed Dec 12, 2018 7:37 pm
Forum: DCC Forum
Topic: Dcc loco issues
Replies: 25
Views: 631

Re: Dcc loco issues

Interesting observations, clarification please: The "full power" is the twelve DC volts transmitted to the rails, yes? The DCC current is a low voltage, 1.5 volts (?) sent in simultaneously which activates the decoder, yes? The decoder is then a resistor, or throttle, if you will, allowin...
by Roger (RJ)
Sun Dec 09, 2018 8:36 pm
Forum: Track/Layout Design
Topic: Hornby DCC Point clips won't fit
Replies: 4
Views: 141

Re: Hornby DCC Point clips won't fit

Picture here of where they fit https://www.freewebs.com/platelayer/poi ... itting.jpg

Hope it helps.
by Roger (RJ)
Sat Dec 08, 2018 9:13 pm
Forum: General Model Railway Discussion / News
Topic: Who wants to test some card building builds?
Replies: 24
Views: 972

Re: Who wants to test some card building builds?

They were visible but not now. They may have been deleted from the hosting site.
by Roger (RJ)
Fri Dec 07, 2018 4:05 pm
Forum: Electronics
Topic: Questions about the Faller road system etc.
Replies: 25
Views: 769

Re: Questions about the Faller road system etc.

"What is the tool called needed to cut the slot for the wire?"

Damned expensive. :D


http://www.gaugemaster.com/item_details ... e=FA161669
by Roger (RJ)
Fri Nov 30, 2018 8:27 am
Forum: DCC Forum
Topic: 6 pin decoder - common positive for functions?
Replies: 7
Views: 200

Re: 6 pin decoder - common positive for functions?

You use one of the power feeds (ie black or red from the wheel pickups) instead of the common positive, or both can be used if you include a couple of diodes to prevent a short circuit.

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