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david1212

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Posts posted by david1212

  1.  

    Ah yes! Araldite, the Greek goddess of adhesives. :-) I recently heard a rumour that Araldite had been bought by EvoStick and the name was gone, but sedulous internet research proved the rumour to be unfounded.

     

    Araldite metal loaded epoxy changed a while ago, most likely due to elf and safe tea banning an ingredient, while the price increased significantly. I can't recall exactly why now but it seemed inferior for the application too.

  2. Had they advertised it for spares they most likely would have made more money than they got in scrap. Sometimes you have to wonder at the mentality of those operating breakers yards.

     

    While so sad to see irreplaceable parts lost for ever unless quickly sold as one lot the value of the space occupied and the time dealing with enquires has to be factored in too.

  3. These stills give a comparison between the filament and LED lights. It's not a perfect comparison due to different lighting conditions for each picture, but give a general idea.

     

    2016_bulb_led.jpg

     

    The animated gif below is compiled from a video shot during testing. It shows the tail light LED coming on first, followed by the brake light. Each LED cluster is quite close behind the coloured glass, and so doesn't illuminate the whole glass as the bulb did, but the light is much more intense and noticable.

     

    2016_tail_break.gif

     

    Is it just a combination of the video then viewing on a laptop that makes the LED tail and brake lights appear the same intensity, rather than the brake being much brighter as it is with filament bulbs that are normally 5 and 21 watt respectively ?

     

    As to the indicators I'm sure discretely fitting a resistor of suitable power rating to dissipate the heat of drawing the same power as two indicator bulbs will work. Another trick would be hiding two filament bulbs somewhere. If you can just swap the electronic flasher unit for an electronic one that would be the easiest and neatest solution.

  4. They do and to allow the changeover, International incorporated an extra part to the combustion chamber which contained the spark plug. When you pull the lever to switch to diesel, a valve shuts off that extra part increasing the compression ratio. It also turns on the diesel and switches off the magneto. Quite ingenious!

     

    Thanks for the detail, I did wonder if somehow the capacity / compression ratio was changed rather than simply turning off the spark ignition system.

     

    I knew about tractors in particular being started on petrol then switched to paraffin as cheaper but that the running principle was the same.

  5. The TD International's started on petrol and switched to diesel when warm.

    They have a mag and plugs on one side and pump and injectors the other side.

    There was a leaver which switched between the mag and the injection pump and shut off part of the head in the combustion chamber.

    Peter.

     

    Interesting to find that this was possible as I thought petrol & diesel engines had significantly different compression ratios, something to read more about when I have time.

  6. Going back to the building the fundamental issue is that in 1995 the only railway rolling stock not UK produced was 30 class 56, and that was because of no UK capacity, and a few GM class 59's.

     

    Given the performance of the Class 59's not really surprising EWS ordered 250 Class 66's and in total over 400 now in the UK.

     

    As to the rest just diesel 170's and 22x with electric 375/377 and 390's, the last of those even built abroad - Italy? , might be boring but they do the job just as well as the massive quantity of Siemens units and smaller numbers of others in use or on order.

     

    The Hitachi plant at Newton Aycliffe is now open but bodyshells are built in Japan and some other orders will still be built outside the UK as insufficient capacity.

     

    Horwich, Washwood Heath, Eastleigh as just 3 examples of sites that could be in use keeping thousands or people in decent paid jobs.

     

    Rant over - back to the RL restoration.

  7. Several posts referring to the driver included ' Professional '.

    Does this simply not imply this was part of his paid work rather than his experience or ability. Of course a reputable employer ought to explain to 'green behind the ears' recruits how they should behave and respect for other road users but ultimately not in their interest when time is money.

  8. .........

    I personally would steer clear of any 'chain' MoT centres e.g. tyre services or 'service centres' as I had a very bad experience at one of these years ago, they failed my XJ6 and quoted £1,000 for repairs to things that didn't need doing.

     

    Yep been there back about 1990 - told I needed new brake pads, discs, drums, shoes & wheel cylinders when all that was actually needed was one cylinder.

    A friend had a similar experience when they first moved to the area with a MOT failure every year. Once they switched to a local 3-man band garage that I also used on their recommendation after the 1-man band I used retired they never had another failure. I had just one failure known in advance of a split CV joint boot.

  9. It took less than a minute to find it! Google is my friend

     

    The key of course is either knowing or a lucky guess with the word(s) to put into the search.

     

    In the early days of my current job a colleague and myself were trying to trace an obscure electrical connector.

     

    Another engineer came along and simply put in Hexagonal Connector. Within the first page of results was the link to a well known suppliers US website and the part could be ordered through the UK website for a nominal charge.

  10. 15:50 Yesterday it was over XM655 at Wellesbourne for the third time this year and probably the final time ever, then off to Bruntingthorpe, East Midlands then back to Doncaster. Given the appearance was just a couple of minutes I was surprised how many turned out.

     

    The scheduled remaining flight time was 30 minutes for around 125 miles - on a bad day it takes longer than that to drive the 11 miles to/from work :-( Oh for a personal jetpack .....

  11. Work changed from AOL broadband to Plusnet fibre optic about 3 months ago.

    The AOL download was typically 6 Meg which was fine, the issue was the upload of around 0.6 Meg.

     

    The Plusnet gives us around 30 Meg download and much faster upload, I can't remember the test result but think at least close to 10 Meg if not over.

     

    The Cabinet is over the road. The copper cable route will not be direct but unlikely to be more than 300m.

     

    The installation was straightforward. Plusnet sent their router a few days in advance. On the changeover day a contractor working on behalf of BT Openreach swapped the master socket to one with two connections, one for the BT modem he brought and one for phones. The microfilter for phones is no longer needed. He then went and made the required installation/ changes in the cabinet. He came back, tested the line with a gizmo then connected the BT modem to the master socket and the Plusnet router to the BT modem. He then said wait about 30 minutes and you will be live but it may be a few days before you get full speed then departed. 30 minutes later we were indeed live.

     

    Internet browsing is generally not noticeably faster, only when a page has lots of images or there is embedded video is the speed increase really noticeable. Some downloads are significantly faster but others not, I guess the speed is often limited by the source server rather than the maximum download speed.

     

    It is definitely less reliable. There have been several occasions when it had dropped out and we have had to wait for 30-60 minutes before being able to browse and use email again.

     

    As to would it be worthwhile I guess much depends on your current connection speed, what you mostly use the internet for, how many computers, tablets, internet connected phones etc are on line at once plus how long the copper connection between you and the cabinet is.

  12. Saw an old cinema newsreel about Blackpool the other day, it showed a much modified jeep towing an ice cream trailer.

    There was also footage of a bren carrier loaded with passengers going out to a boat and returning.

     

    its good footage that , we have a log book somewhere for one of them jeeps

     

    I vaguely recall the vehicles parked up on the seafront in the 1970's when we came for the illuminations but was more interested in the trams. We came up most years for a period. The last time I would have been perhaps age 14.

     

    Is that footage, or indeed any other, online somewhere?

  13. Something most of us will have to decide as support for XP ends in 48 days time!

     

    http://www.microsoft.com/en-us/windows/enterprise/endofsupport.aspx

     

    I have W7 on one machine & don't like it. XP was more straightforward. But I find things like multifunction mice aren't supported on W7 so when the crunch comes I suppose it will be W8. To go for W7 would mean the support plug gets pulled that much sooner. :-(

     

    All that is happening is that after 8th April Microsoft will not be releasing any new updates for XP.

    You do NOT have to stop using it !!!

     

    All the existing updates will remain available should you need to do a full re-installation too.

     

    Gradually other software companies, printer manufacturers etc will stop supporting XP too.

     

    Avast are very good supporting old operating systems, Antivirus ver5 still works fine and gets daily updates for Windows 2000.

     

     

    As to the original question years ago I used AVG but it became resource hungry so I switched to Avast together with Comodo Firewall. This combination seems to be effective and smooth running both on XP and Win7 32bit.

     

    Comodo is now a full Internet Security Suite and the only free one I know that allows commercial use.

    It gets good reviews but I've not yet used the Anti-virus component.

  14. Funny I found this post today as I have spent all day making a trailer board for my bofors gun, using LED lights. I wired it all up on the work bench and used a model train controller to test it. Superb bright lights very safe....

    BUT when I attached it to my 6v Jimmy... Nothing. I thought I must of wired it up backwards so reversed it .... Still nothing.

    put it back on the railway controller.. Works fine.. I am baffled

     

    My guess is the train controller output is not pure DC but phase angle controlled rectified ac or PWM.

    Hence while the average output is 6V it is actually say 12V for 10ms then off for 10ms.

    The 12V is lighting the LED's while the the fact that they are actually flashing is faster than the human eye can see.

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