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stewartingram

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Posts posted by stewartingram

  1. A quick Google shows the said company to be the founder of the West Ham FC. Based in Bow, a shipbuilding company. I did wonder if the 2 signalboxes on the right might be a clue. The far right one looks like GER, the one to the left of it I don't recognise but could it be LTSR? Also are the coaches down near them a set of Gresley corridors?

     

    Stewart

  2. email from Hattons...

     

    "Our latest information from the supplier suggests this item will arrive with us between June 2012 & June 2012...

     

    We hope that this email has been useful"

     

     

    so June then :)

     

    Or 2012

  3. A tad OT but for those into conversions I've posted my old Triang AL1 on RMWeb Marketplace, in case anybody wants one for conversion work. Make me an offer!

     

    Stewart

  4. I've got to admit that I'm a bit puzzled by questions about mismatched motors. I can see where they are coming from, but practical experience doesn't bear it out in my experience. If the situation was say a HST set with 2 power cars, and the rear one was more powerful, in theory the worst case would be the coaches being pushed off the track, or at least wheelspin from the rear loco? My experience is that the 2 actually work to match one another, with the more powerful one being held back in performance by the lesser one. Even double heading, with 2 different locos, I don't seem to get any problems. A big wheeled pacific, say, with a small wheeled tank loco, and in worse case a 'well thought out' tank with low speed gearing, coupled to a 'toy' express loco, the two work together. As for back emf; my controller is a 70s design from Wireless World, adapting the then new technology of drill speed controllers with back emf and shaped pulse width. Biggest problem I find in general is poor electrical pickup. I add pickup to as many wheels as possible, and rely on solid soldered connections rather than wipers (such as in recent Bachmann dmu bogies to underframe) to give the best possible pickup.

    I'm not saying it won't occur, and have no practical experience of DCC, though have fitted a few hundred Zero1 chips in my time. Just my musings and practical experience so far.

     

    Stewart

  5. Wow what a challenge! I'm a lifelong fan of Blackpool trams (well up until the Flexi's anyway....) so will follow this with much interest. About 10-12 years ago I started a 00 layout which was to use my collection of Corgi & kit built trams - I still have the boards in the garage loft, untouched since we moved soon after tracklaying. I have a photosurvey that I did at the time, built the track (copperclad) and even included the subtle changes in checkrails etc, just wish I had the room to revive it now.

    Good luck with this

     

    Stewart

    • Like 1
  6. Really ? Do you think it would look out of place on a Great Western branch line ?

     

    And didn't they work across the M&GN to north Norfolk somewhere? Somewhere I'm sure I have a couple of pics, one where it is looped to let the BP past on a footie special, preceeding the other one which is GT3 on a Leicester-Yarmouth saturday train...honestly if you were a modeller they would say you were making it up.....

     

    Stewart

    • Like 4
  7. Oh dear....maybe I should get one to compliment my collection of Cambridge-Bletcley line stock.....why did you have to post that! I liked the look of it when announced but gave a sigh of relief as I could not justify one.....

     

    Stewart

  8. As far as I am aware, there were NO steam heating vans in use on trains on the mainland. Over in Ireland they were used though. The only steam heating vans on BR were used in sidings to preheat stock before being used on a train. There was a thread discussing this on RMWeb recently.

     

    Stewart

  9. Wow! A picture of the real St.Ives - well done. Those 16t wagons would have been in use on the sand train to KGX, with the class 100 on the shuttle to Cambridge. That was soon switched to the old Huntingdon branch platform, which had seen little use for many years, thus leaving the main platforms clear for the sand train and its shunting and run-round.

     

    Stewart

  10.  

    Just been checking on this thread as my 31 is still with Hornby and i'm getting lonely. Reading what you have had to do ' Throw away pcb and lights' is disgraceful. You paid good money for that loco and now through no fault of your own you have an inferior model. :nono:

     

    Actually I have a better loco - I've got rid of those disgusting lights on a green loco!

     

    Stewart

  11. Here's a photo of one at Harold Wood on the Liverpool Street (ex. GER mainline) line:

     

    http://en.wikipedia....-Brooksbank.jpg

     

    Best, Pete.

    And going slightly off topic - notice the effects of the lighting in daylight? A "G" class Light Engine headcode, with a disc surrounding the lower centre light, but all 4

    lights, with I believe white painted "reflectors", all (not) showing at about the same brilliance. Heljan (and all purchasers) take note with your W&M railbus!

     

    Stewart

    • Like 1
  12. Surely a changeover switch is by definition double throw, because it changes over from one on position to another?

     

    I don't understand DPDT - NO, as all the double pole double throw (also described as double pole changeover) switches I've got are closed one way or the other when in their thrown position. The only thing that distinguishes DPDT switches from each other is whether they are make before break or break before make. In the first of those both ways are on when changing (so they are no good for reversing switches as they will give a short circuit) and in the other neither is on when changing.

     

    As I understand it, normally open and normally closed only apply to sprung switches (such as microswitches). The spring ensures that one set of contacts is normally open or normally closed unless the switch has been operated against the spring.

     

    A ST switch only has one lever movement. If it has a centre-off position it becomes a DT because there are 2 movements to complete the throw. It can be a simple ST CO or a DT CO centre-off.

     

    In the interests of keeping it as simple as I could, I deliberately omitted make-before-break etc so as not to complicate it.

     

    I agree that most common switches have sprung contacts; however consider a slide switch or a rotary switch. These can perform exactly the same electrical switching, but the contacts are not sprung over to a rest position. This is determined by the position of the operating knob or whatever. So an electrical definition of the switch contact actually remains the same.

     

    Good point about the DPDT - NO though, I confess to having just "plugged in" the relevant code to the original description! Hovever, it is technically possible to build one, just think of a 3 position rotary with NO contact on position 1 & 3, with NC only on position 2. Though why you would...?

     

    As I said there are many styles of switch. Even a simple toggle, with a centre off position (ie a DT switch) can be complicated by having a sprung loaded lever, so you cannot park it in one or other (or both) ends of the throws.

     

     

    Stewart

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