resistors

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  1. H

    Texecom Premier Alarm

    Hi, short off it is my sister has bought a texecom wired alarm and wants me to fit it and to be honest I did a course about a year and a half ago on alarm installation but since then cause I was an electrician in the army and for past year been doing domestic electrician with elecsa, I haven't...
  2. V

    Fire alarm eol resistors

    Got a job on at the moment to disconnect part of a building, and need some EOL resistors Ones im after are a 6K8 and a 470R, im hoping maplins can help but does anyone know what the rating these would be as maplins only state the Ohms value Thanks in advance
  3. E

    Led glow

    Installed led spotlight on landing controlled by 2 way switch. When switched off it continues to glow. Presumably this is an induced voltage in the strapper. Is there any cure or even any need to cure it?
    • eckersecker
    • Thread
    • across aus cable electricians' talk final led resistors
    • Replies: 5
    • Forum: Australia
  4. S

    Resistors and capacitor going bang.

    Been doing some electronics experiments with the students. Fairly easy stuff, but i have to admit the last time i did this stuff was when i was where they are now, and that is more years ago then i will admit. Anyway, we have soldered some resistors in series and parallel, added capacitors and...
    • SirKit Breaker
    • Thread
    • aus bang capacitor electricians' talk going resistors
    • Replies: 4
    • Forum: Australia
  5. T

    test board resistors

    hi all, anyone have any idea what resistors colleges put in test boards to simulate longer cables for decent ring test results? cheers!
    • tawraste
    • Thread
    • aus board drawings electricians' talk google resistor resistors results test
    • Replies: 4
    • Forum: Australia
  6. S

    Changing Direction (alarm related)

    I did post this in the welcome section and someone pointed out it was best i posted here Im simon from Birmingham, Im about to do my part p so any help and info would be great on that, however what i would really like to do is get deeper into Alarm, Fire and CCTV installs in particular Fire...
    • sparkysmate
    • Thread
    • alarm changing electricians' talk related resistors start wiring
    • Replies: 3
    • Forum: Business Related
  7. C

    Test Rig Resistors

    Hi I am knocking up a test rig for practice:) The general set up is fine - but obviously limited in realism by short cable runs. I would like to include resistors to simulate "real world" cable runs so that realistic readings are given on tests. I really don't know much about resistors...
  8. S

    Voltage Drop Of DC Resistors

    Im currently doing a electrical course at college and im stupidly stuck on the most simple question. Due to my teacher not being the most approachable i thought id ask here for help, heres the question; http://img205.imageshack.us/my.php?image=71997536ox1.jpg Im asked to calculate the amps and...
  9. J

    Help Needed. 16 x 16 LED array.

    Hello, I'm new to DIY electronics and I would be EXTREMELY grateful if someone could help me by answering the following: 1. I would like to set up a 17 x 16 bulb LED array on a piece of Veroboard. The bulbs are 5mm. 204 red (655nm) and 68 Blue (485nm). This will eventually be a 14 Watt, 120...
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