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Thread: Help recognising connectors

  1. #1
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 6,878
    I'm Lawrence.

    Default Help recognising connectors

    Does anyone know what these screw on connectors are? I've got a PSU with them but something goes loose in it occasionally and the amp makes a horrible noise. Would like to get another one made.

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  2. #2
    Join Date: Sep 2013

    Location: North Island New Zealand

    Posts: 1,757
    I'm Chris.

    Default

    They are known as a Marushin connector, they can be opened by undoing the small grub screw, and then repaired as required.
    They are usually pretty reliable, just make sure the cable is soldered well, heat shrink can be used to insulate and then when finished
    the cable is held firmly at the rear with the clamp.

  3. #3
    Join Date: Oct 2012

    Location: The Black Country

    Posts: 6,089
    I'm Alan.

    Default

    Also the female contacts can be tightened a little by using a strong needle to reduce the diameter slightly, if the connector feels loose when mated.
    Push the needle into the contact hole on the outside of the metal sleeve and bend it inwards slightly.

  4. #4
    Join Date: Mar 2017

    Location: West Sūžsēaxe

    Posts: 2,016
    I'm Edward.

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    I also expect that only 3 of the 5 pins are actually being used.

    Also, as Chris, says worth putting some heatshrink on. In addition to insulation it will help with clamping.
    Current: [P20] Roon/Tidal > Custom PC> Chevron Paradox NDF16 > Phast Pre > Neuro. 686 > Tannoy Berkley (RFC tweaks)


  5. #5
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 6,878
    I'm Lawrence.

    Default

    Thanks both I'll have a look. Whenever I buy something with extra pins on the power supply I always like to think that I've got something with a sophisticated PSU with multiple isolated rails but it's probably rarely true!

    In this case it's an Iota Audio reference headphone amp so you never know, it could be a true dual mono design. Probably the same as their reference phono stage if anyone knows. The case is big and heavy enough for 2 toroids anyway.

    Sent from my POT-LX1 using Tapatalk

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