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ZiderHead

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  1. This does seem strange - are the steam and diesel operations run completely independently with different crews, management and procedures?
  2. Like most things, its probably best to learn the correct way to do it before you start improvising ... As for "tinned" components, experience has taught me to tin everything, its quicker. Anyone know the solderable half life of tinned copper wire? (I keep my TCW in airtight baggies ... )
  3. Solder - use multicore (ie. rosin flux inside it) 60/40 Tin/Lead: http://uk.rs-online.com/web/p/solders/0555235/ This is 0.7mm which is usually fine, I prefer 0.5mm so I can do the odd bit of surface mount stuff which is very fiddly. Rule of thumb - set the iron to 2x the melting temp of the solder, so for the above 188x2 = 376deg. Ive never used enamelled wire, how do you strip the insulation off it for soldering?
  4. Its actually the other way round - revenue expenditure (expenses) reduces profits so gets the full relief, capital expenditure does not. However the capital assets can be depreciated and the relief taken on the depreciation (capital allowances). Spend £100k on loo roll and you get £20k tax relief that year. Spend £100k on machinery and you might only get £5k that year. Thats a simplification of course and currently capital spending up to £250k? can be treated as expenses as a temporary measure to encourage small business investment (an attempt to increase our stagnant productivity.) I have no idea what arrangements NR have with HMRC though, I imagine they are not straightforward!
  5. Yup its very stubborn stuff but if you use plenty of heat and keep the iron on the work the rosin burns off nicely just leaving a bit of powdery residue. As much heat, and as little solder as possible works for me As for cleanup I use foamy oven cleaner right at the end.
  6. Any flux will suck heat out whatever its on when it vaporises, the more there is the more it will cool everything. I use the BOGO flux with rosin-cored solder and use juuuust enough to coat the brass using a fine brush, and only where I want solder. This seems to be a good combination - the liquid (citric based?) flux attacks the oxidised brass then vaporises leaving a nice clean surface for the solder to attach to, wetting and flowing aided by the rosin flux.
  7. ... or perhaps he's a canny consumer who split tickets his rail journeys and ends up with 8 tickets for a 40 mile return trip? (I suspect your instinct was correct though )
  8. Sorry I should have been clearer - given that I don't know the first thing about costing infrastructure projects, £52m sounds like good value to me (the 240m of road I mentioned was 240 meters, not 240 miles ...)
  9. Good job! £52m sounds like a lot for 11km of track but to give a little context Oxford County & City Councils managed to spend £5.1m repaving 240m of city centre road in 2004 (thats £8m at todays prices) ...
  10. That seems like a rather clever idea, especially with trains passing which don't have holding tanks. Yuk.
  11. Hi chaz, I got mine from an ebay store. They also make some that you can plug a spade connector into, very handy if you need to easily disconnect the droppers for any reason: edit: If you haven't used these before they take seconds to install - no stripping just crimp with pliers (adjustable preferably, or even mole grips), current limited only by the cable you're using, and at 10-15p each an easy choice for applications like this
  12. Wires stripped from twin and earth, connect droppers with scotchlock connectors (100 for a tenner), job done.
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