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SHMD

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Posts posted by SHMD

  1. Amps will only cause you a problem if...

     

    A/ There is enough "volts", behind them, to force the "amps" through you! (A shock.)

    B/ There are "a lot" of amps, normally in the circuit, and you provide a short(er) circuit for them. (A fire hazard.)

    C/ There aren't enough amps for what you want them to do! (The thing doesn't work!)

     

     

    Was the layout wiring complete and the LED circuit connected to a PSU (of some sort) but currently switched off?

     

     

    Regards,

    Kev.

  2. 6 hours ago, monkeysarefun said:

    Does anyone remember Miss Marilyn's Super Flying Fun Show, a channel 9  kids morning show  from the early 1970's? It had Rod Hull who played some bloke called Caretaker Clot, from memory.  Maybe it was a Sydney only show.....

     

    Yes, and all in black and white.

    I watched it in Melbourne and I was always up early for the start.

    The programme before it was always two "old blokes" talking the most boring stuff imaginable to a kid - probably politics.

     

    "Watch out, watch out - there's a Humphry about!

     

     

    Kev.

     

    • Like 4
  3. I thought the "country code" encourages you to "leave gates how you find them".

    (...with a very few exceptions of where the gate is obviously in the wrong position.)

     

     

    Kev.

     

    • Agree 1
    • Funny 1
  4. 32 minutes ago, kevinlms said:

    I don't know much about it, but 100% it's nothing to do with AC electrics as the trains run off 1500 volts DC.

     

    Not AC "Traction" power/supply, or transmission, but simple interference rejection of the domestic 50Hz supplies when operating "sensors" remotely from the signalling system/network.

     

    I also wonder if it might just be a simple "spark gap" used to protect the occupancy circuits if AC traction supplies are present and fault to the rails.

     

     

    Kev.

     

     

  5. Is it a "load" so that the occupancy detector can detect that the circuit is working even if a train is no "shorting" the rails together?

    Think of it as a resister and that the occupancy detector can detect 1/ an "open circuit" - a fault, 2/ an "unoccupied circuit" - line clear, and 3/ a "short circuit" - a train or line occupied.

     

    Of course, it makes more sense if it is actually a capacitor (providing impedance) so that it works with AC electric - of a frequency that does not correspond with "mains" frequencies (and their derivatives).

     

    Just my speculation as I don't work in the rail industry.

     

     

    Kev.

     

    • Interesting/Thought-provoking 1
  6. 27 minutes ago, Colin_McLeod said:

     

     

    This could be an advantage if you can't find the receipt.  😉

     

    Or you can buy and pay on line and have full proof of purchase with details.

     

    I've found that not all things are available online forever.

    Can you still get a "Hattons" receipt online?

     

     

    Kev.

    • Interesting/Thought-provoking 1
  7. 4 minutes ago, Kaput said:

     

     

    Sadly in my experience most smaller model shops only give extremely basic receipts that have the amount of money spent listed but no details of any use on what the money was spent on.

     

    I was thinking that too, plus the fact that some receipt materials used just fade away - usually years before I even start the project that the receipt paid for!

     

     

    Kev.

     

    • Agree 2
    • Friendly/supportive 1
  8. The "resultant finish", of fake products, "may not be the same" because any defects/loss of fidelity does not matter to them as they fully intend not to support them in any way once sold - unlike a legit business which must factor in these costs.

     

     

    Kev.

     

    • Like 1
    • Agree 1
  9. 19 minutes ago, kevinlms said:

    How do you know that Dapol can't tell the difference between of their products and a 'fake' one?

     

    They can. It's called "proof of purchase".

    This thread really does show why "proof of purchase" (a receipt) is so important now - and increasingly so in the future.

     

    All sympathies, and support, to Dapol and other victims of this type of crime.

     

     

    Kev.

     

    • Like 6
  10. 42 minutes ago, jjb1970 said:

    How to uglify a nice looking aircraft, I'm sure these things are extremely impressive technically but they are not especially nice looking.

     

    G550-9.JPG

    G550-10.JPG

    G550-12.JPG

     

    What is the aircraft type? (Modified and unmodified.)

     

     

    Kev.

    • Like 1
  11. 9 hours ago, Sidecar Racer said:

     I came across this on Youtube , not a ship but a different take on propulsion .

     

    I will post as a link as a tease .

     

     https://www.youtube.com/watch?v=oLRNf8nzcC8

     

     

    I loved the relaxed lifestyle there. Very tempting!

     

    ...but the "boating" was brill too. So effortless.

    I loved the super long Dip Stick, the bottle on the exhaust, and the efficient way they "seesawed" the motor bike off at the other end.

    The safety looked well catered for - at least there were life-jackets a plenty!

    The engine looked well maintained and tended. Clearing the Prop would be a doddle!

     

    Did you see how many "views" that video has!!

     

    Thanks Mike for posting that. Very therapeutic.

     

     

    Kev.

    • Like 1
    • Thanks 1
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