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Thread: Vintage transformer ?

  1. #1
    Join Date: May 2016

    Location: Milton Keynes

    Posts: 3,577
    I'm Andrew.

    Default Vintage transformer ?

    It weighs a ton and looks lethal, what’s it for ?
    Auto transformer .500VA
    Ratio 230/115v. 1 Phase .50.C.P.S
    Switchgear & Gowans
    England


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  2. #2
    Join Date: Oct 2012

    Location: The Black Country

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    I'm Alan.

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    It's a step down auto transformer, for running 115V equipment off 230V mains.

    The 'auto' part means there is only one winding so it doesn't provide isolation. Rating 500W (VA).

  3. #3
    Join Date: May 2016

    Location: Milton Keynes

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    Quote Originally Posted by Firebottle View Post
    It's a step down auto transformer, for running 115V equipment off 230V mains.

    The 'auto' part means there is only one winding so it doesn't provide isolation. Rating 500W (VA).
    Thanks for that info Alan , I’m guessing it’ll be of little use to anyone nowadays.


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  4. #4
    Join Date: Oct 2015

    Location: Woodmancote, West Sussex

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    I'm Ian.

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    [IMG][/IMG]
    Turntable
    Toshiba SR-370/Mission 774/Van Damme cable with MS Starline plugs/Ortofon Quintet Black
    CD
    Cambridge CXC transport/modified Musical Fidelity X-DAC/modified Musical Fidelity X-10 V3 tube buffer
    Network Player
    Cambridge NP30
    Amplifier
    Denon HA-500 head amp/Nakamichi CA-5E pre-amp/Chinese passive RVC/Proton AA-1150 DMC power amp
    Speakers
    Mordaunt Short Signifer on original factory stands
    Cables
    Mogami with Rean Neutrik plugs/NVA LS5
    Headphones
    Sennheiser HD600/Sennheiser HD650/Koss Pro4 AA

  5. #5
    Join Date: May 2016

    Location: Milton Keynes

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    I'm Andrew.

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    Quote Originally Posted by Ian7633 View Post
    [IMG][/IMG]



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  6. #6
    Join Date: Aug 2008

    Location: Suffolk, UK

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    I'm Paul.

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    500VA is a decent rating. As long as it works okay and is still safe it might be of use to someone who has some US voltage gear.
    ~Paul~

  7. #7
    Join Date: May 2016

    Location: Milton Keynes

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    Quote Originally Posted by Primalsea View Post
    500VA is a decent rating. As long as it works okay and is still safe it might be of use to someone who has some US voltage gear.
    But how do I get the wife to test it without burning the house down 🤷🏼*♂️


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  8. #8
    Join Date: Jan 2009

    Location: Essex

    Posts: 31,853
    I'm openingabottleofwine.

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    Yes, if you know someone who has a 'Megger' and can check the integrity of the insulation, preferably at 1,000V, there is no reason why the autoformer can not be used with US gear operating on 115V.
    Barry

  9. #9
    Join Date: Aug 2008

    Location: Suffolk, UK

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    I'm Paul.

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    Quote Originally Posted by andyrlb View Post
    But how do I get the wife to test it without burning the house down ����*♂️


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    I tend to send mine out to the garden when its raining to test stuff when I think there could be a fire hazard.
    ~Paul~

  10. #10
    Join Date: May 2016

    Location: Milton Keynes

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    Quote Originally Posted by Primalsea View Post
    I tend to send mine out to the garden when its raining to test stuff when I think there could be a fire hazard.



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