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sunday sipping bubbly in the ergosphere of cygnus x1

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  • pinnopinno Posts: 40,763
    sungod wrote:
    pinno wrote:
    @SG and Oxo. I tested the LED's using the diode function on the multimeter. Nothing, diddley squat, dunno why - maybe the battery is low. Then used the Ohms function: 0 in one direction and resistance in the other. Mission accomplished. Polarity figured out.

    the diode function may be based on typical si diode forward voltage, led forward voltage will be much higher, in which case it won't look like a diode to the meter, whereas resistance will show even a smidge of leakage

    Noted. All I wanted to do was to ascertain polarity.

    Methinks this looks like the dog's danglies:

    https://www.ebay.co.uk/itm/Farnell-L12- ... SwyP5aJEER
    seanoconn - gruagach craic!
  • hopkinbhopkinb Posts: 6,319
    I always thought loving SRAM was something you did in secret, that it was all about chrome plated Italian gruppos from the 80's. Well, I love double tap too.
  • sungodsungod Posts: 13,366
    pinno wrote:
    Noted. All I wanted to do was to ascertain polarity.

    Methinks this looks like the dog's danglies:

    https://www.ebay.co.uk/itm/Farnell-L12- ... SwyP5aJEER

    i remember having farnell supplies in the lab in the '80s, they were well made, being able to set current limit is certainly handy if you want it for testing - helps avoid stuff melting/burning/exploding

    though this is new and cheaper (though only 5 amps)...
    https://www.ebay.co.uk/itm/Lavolta-Vari ... 3234019354

    there're also some much cheaper switchmode units that have the same styling, personally i'd stick with linear for something that will be subject to abuse
    my bike - faster than god's and twice as shiny
  • Stevo_666Stevo_666 Posts: 44,609
    Bust 900 notes out of black ops fund for balance of S5?

    Waddya say? Only live once and all that.
    Don't know what your black ops fund is, but go for it. What's the worst that can happen?
    Whippet
    Bruiser
    Panzer
    Commuter

    "I spent most of my money on birds, booze and fast cars: the rest of it I just squandered." [George Best]
  • MatthewfalleMatthewfalle Posts: 17,380
    Stevo 666 wrote:
    Bust 900 notes out of black ops fund for balance of S5?

    Waddya say? Only live once and all that.
    Don't know what your black ops fund is, but go for it. What's the worst that can happen?

    Agree - it is there for emergencies and this is an emergency.

    Just have to restock it asap.
    Postby team47b » Sun Jun 28, 2015 11:53 am

    De Sisti wrote:
    This is one of the silliest threads I've come across. :lol:

    Recognition at last Matthew, well done!, a justified honour :D
    smithy21 wrote:

    He's right you know.
  • pinnopinno Posts: 40,763
    sungod wrote:
    pinno wrote:
    Noted. All I wanted to do was to ascertain polarity.

    Methinks this looks like the dog's danglies:

    https://www.ebay.co.uk/itm/Farnell-L12- ... SwyP5aJEER

    i remember having farnell supplies in the lab in the '80s, they were well made, being able to set current limit is certainly handy if you want it for testing - helps avoid stuff melting/burning/exploding

    though this is new and cheaper (though only 5 amps)...
    https://www.ebay.co.uk/itm/Lavolta-Vari ... 3234019354

    there're also some much cheaper switchmode units that have the same styling, personally i'd stick with linear for something that will be subject to abuse

    Okay. Good spot. 5amps is probably plenty. Comes with cables too. Though i'd probably make a couple up with the mini crocodile clips, then I have 'hands free' function. What do you call the cables that have a loop end and the loop is sprung?
    Forgive my ignorance but what is the difference between linear and non linear?
    seanoconn - gruagach craic!
  • sungodsungod Posts: 13,366
    linear - heavy transformer that turns mains ac into lower voltage, gets rectified and smoothed, followed by the electronics to regulate voltage/current - not as efficient, but simpler and usually more tolerant of abuse, easier to repair even without a circuit diagram

    switched - rectifies/smooths main voltage then converts to high frequency allowing use of a smaller/lighter transformer, rectify/smooth, the high frequency allows smaller capacitors, more electronics to control everything - these are far more efficient, lighter and cheaper, hence most power supplies are switchmode these days, reliable in intended application, if they fail the additional complexity can make repair more difficult (and dangerous working on the live side)

    this sort of thing? https://www.ebay.co.uk/itm/Spring-Loade ... 0563183926
    my bike - faster than god's and twice as shiny
  • pinnopinno Posts: 40,763
    Yes, that's the sort of thing.

    Thanks SG. Pineapple tree seeds in the post.
    seanoconn - gruagach craic!
  • MatthewfalleMatthewfalle Posts: 17,380
    pinno wrote:
    Bust 900 notes out of black ops fund for balance of S5?

    Waddya say? Only live once and all that.

    Noooo, get a 2nd hand Spesh on fleabay. Keep the change to buy Edwyn's deluxe long lasting incinerator torch for maintenance of neighbour submission.


    No. The Spesh will be as bland as the Trek I reckon.
    Postby team47b » Sun Jun 28, 2015 11:53 am

    De Sisti wrote:
    This is one of the silliest threads I've come across. :lol:

    Recognition at last Matthew, well done!, a justified honour :D
    smithy21 wrote:

    He's right you know.
  • pinnopinno Posts: 40,763
    pinno wrote:
    Bust 900 notes out of black ops fund for balance of S5?

    Waddya say? Only live once and all that.

    Noooo, get a 2nd hand Spesh on fleabay. Keep the change to buy Edwyn's deluxe long lasting incinerator torch for maintenance of neighbour submission.


    No. The Spesh will be as bland as the Trek I reckon.
    No. Just ask Chris Bass.

    (and stop hitting the return button after a quote twice. You don't even need to do it; it give's you a space even if you put the text directly underneath).
    That's you told.
    seanoconn - gruagach craic!
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