Search found 274 matches

by Suzie
Tue Apr 02, 2019 10:42 am
Forum: DCC Forum
Topic: ZTC Controllers... Are they any good?
Replies: 9
Views: 458

Re: ZTC Controllers... Are they any good?

That's simply not necessarily true. (I suspect that's information from an incorrectly wired system.) On the rare occasions I have a system all stop, I can change any point without trouble. Do please list any further shortcomings. Wires break in the handsets with frequent use - a bit of a pain on th...
by Suzie
Mon Apr 01, 2019 9:56 pm
Forum: DCC Forum
Topic: ZTC Controllers... Are they any good?
Replies: 9
Views: 458

Re: ZTC Controllers... Are they any good?

Just don't try and operate a point while the Lenz is in stop mode - it will crash and you have to power it off and on. It depends what you do as to whether you see its shortcomings - there are a few others as well.
by Suzie
Mon Apr 01, 2019 7:37 am
Forum: DCC Forum
Topic: ZTC Controllers... Are they any good?
Replies: 9
Views: 458

Re: ZTC Controllers... Are they any good?

I think that the big issues to watch out for with the ZTC apart from the reliability (which may be improved now) are:- 1. If you are going in reverse and stop (at a station or signal for example) the headlight will come on until you pull away. 2. While the ZTC uses Xbus for its control interface it ...
by Suzie
Fri Mar 29, 2019 8:36 pm
Forum: DCC Forum
Topic: dcc Run aways
Replies: 11
Views: 274

Re: dcc Run aways

The problem you are seeing is due to poor pickups or dirty track or wheels generally. The cheap decoders show it up while the better decoders like Zimo and modern Lenz will mask it, but for best results you do need to resolve the underlying problem by making sure that the track, wheels and pickups a...
by Suzie
Tue Mar 19, 2019 8:09 pm
Forum: Scenery
Topic: 00 gauge semaphores, whats best?
Replies: 9
Views: 343

Re: 00 gauge semaphores, whats best?

I think that the best bet is to use the Ratio semaphores. Get the newer kits with the metal cranks since they are easier to assemble an a bit more robust. You should be able to customise them to do what you need, and as long as you don't need more than two arms per post you should be able to manage ...
by Suzie
Sat Feb 09, 2019 6:14 pm
Forum: Dapol
Topic: Dapol semaphore signals
Replies: 29
Views: 2657

Re: Dapol semaphore signals

I suspect that they built the prototype and then realised that the (white) LED would not work on 3.3V since its forward voltage is higher than that. They should of course have used a yellow LED to get proper oil lamp colour which could run from 3.3V with a resistor.
by Suzie
Sat Feb 09, 2019 1:50 am
Forum: Dapol
Topic: Dapol semaphore signals
Replies: 29
Views: 2657

Re: Dapol semaphore signals

Dapol are quite insistent that their signal is perfect in every way and is just what the customer wants. You should be able to operate the signal on a voltage as low as 6V DC if required to reduce the brightness to sensible levels. While the LED is run from the supply voltage via a 820R resistor, so...
by Suzie
Fri Feb 08, 2019 8:08 am
Forum: Dapol
Topic: Dapol semaphore signals
Replies: 29
Views: 2657

Re: Dapol semaphore signals

Don't use DCC directly it will cause damage, and 16V AC will cause excessive heating. Regardless of what it says on the packaging you should use 9v DC for Dapol semaphores. Use of anything over 9V will just cause more heat to be dissipated, and the LED to be brighter (if the signal has one). LED sho...
by Suzie
Fri Feb 08, 2019 8:04 am
Forum: Electronics
Topic: Point Rail Feeds
Replies: 4
Views: 178

Re: Point Rail Feeds

That would work.
by Suzie
Thu Jan 31, 2019 12:10 am
Forum: General Model Railway Discussion / News
Topic: raspberry pi
Replies: 4
Views: 193

Re: raspberry pi

The Pi will run JMRI which is jolly handy. Anything you can do in JMRI can be done on a PC and then run on the Pi, but the Pi is a fully featured device so you can plug in a mouse and keyboard, or run a remote graphical terminal session. There is no need for a cross-compiler because JMRI is in Java ...
by Suzie
Sun Jan 06, 2019 11:30 pm
Forum: Electronics
Topic: Voltage divider
Replies: 14
Views: 373

Re: Voltage divider

A chain of inverse parallel diodes would do it, but it might be easier to run the motor from 6V! Would they be linked between the two wires, and would the motor tap half way along the chain? Would it work with reverse voltage? I'm struggling to see how this would all wire up! Just wire pairs of dio...
by Suzie
Sun Jan 06, 2019 10:13 am
Forum: Electronics
Topic: Voltage divider
Replies: 14
Views: 373

Re: Voltage divider

A chain of inverse parallel diodes would do it, but it might be easier to run the motor from 6V!
by Suzie
Fri Jan 04, 2019 2:07 pm
Forum: General Model Railway Discussion / News
Topic: Who wants to test some card building builds?
Replies: 28
Views: 1320

Re: Who wants to test some card building builds?

Christmas has been a bit busy with extra work and broken cars to mend, but hopefully I will get back on schedule soon and get it built!
by Suzie
Tue Dec 18, 2018 10:53 pm
Forum: General Model Railway Discussion / News
Topic: Shrink tube
Replies: 2
Views: 163

Re: Shrink tube

Heat shrink tube generally comes in two types - 3:1 and 2:1

For a nice tight fit on 1mm wire you will need something about 1.5mm diameter in 2:1, but can go up to 2.5mm diameter in 3:1

Something like Rapid 03-2340 will probably do the job.
by Suzie
Sun Dec 09, 2018 12:03 am
Forum: Electronics
Topic: Questions about the Faller road system etc.
Replies: 25
Views: 908

Re: Questions about the Faller road system etc.

You use the Dremel cutting disc to make a slot. The faller wire is just plain steel wire with a bit of spring to it so it bends smoothly (probably piano wire) that needs to be protected with paint or varnish to stop it corroding. The wire needs to be level with the top of the road surface - it won't...

Go to advanced search