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Thread: Mechanical Diodes? Really?

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    Senior Member miniguy's Avatar
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    VIP/Donor [VIP/Donor] microstrip's Avatar
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    Nothing really new - Goldmund did it more than 30 years ago, as far as I remember using steel and a special high-speed metal point.

    Probably the Godmund patent expired and anyone can manufacture devices working on this principle now.
    DCS Vivaldi 2.0 stack, Soundlab A1 Px's while waiting for the XLF successor, EMT927, SME3012R, ARC Phono 3, Lamm ML1.2 Ref, Lamm L2ref, Stealth Dream speaker , Crystal Dreamline ICs, TA XL digital, TA XL gen V power cables, CenterStage footers and Nordost Qkore8's!

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    Site Founder And Administrator Ron Resnick's Avatar
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    I think Mod Squad Tiptoes were sold on the same concept, weren't they?
    Mono and Stereo - Senior Contributing Reviewer

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    Senior Member miniguy's Avatar
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    No such thing exists in the context of wave propagation in solid media. The term is most commonly associated with one-way energy transfer in gear assemblies or torque converters. Just try measuring the output of an accelerometer on the top side of a cone subject to vibration at the pointed end.

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    VIP/Donor [VIP/Donor] microstrip's Avatar
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    Quote Originally Posted by miniguy View Post
    No such thing exists in the context of wave propagation in solid media. The term is most commonly associated with one-way energy transfer in gear assemblies or torque converters. Just try measuring the output of an accelerometer on the top side of a cone subject to vibration at the pointed end.
    It is now audiophile jargon - once a designation has been used for more than thirty years it is considered adopted!
    DCS Vivaldi 2.0 stack, Soundlab A1 Px's while waiting for the XLF successor, EMT927, SME3012R, ARC Phono 3, Lamm ML1.2 Ref, Lamm L2ref, Stealth Dream speaker , Crystal Dreamline ICs, TA XL digital, TA XL gen V power cables, CenterStage footers and Nordost Qkore8's!

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    Senior Member miniguy's Avatar
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    Quote Originally Posted by microstrip View Post
    It is now audiophile jargon - once a designation has been used for more than thirty years it is considered adopted!
    Agreed. Just one example in this hobby where arm waving substitutes for scientific fact.

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    The Jadis JD1 and Theta Drives adopted this principle as well.

    BruceD

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    Senior Member miniguy's Avatar
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    Quote Originally Posted by BruceD View Post
    The Jadis JD1 and Theta Drives adopted this principle as well.

    BruceD
    It's not a principle. It's lore.

  9. #9
    Yes Ron, you are correct, it was Mod Squard with their Tiptoes, later it was Pin Points out of the Nederlands, Gryphon used in on their first preamplifier in the eighties, YBA, Goldmund and many others used them too. Nobody has a patent on the idea and today there are many versions of them, generally all called spikes and has become a almost mandatory tweak for most.
    Last edited by trueblue; 11-02-2017 at 04:01 AM.

  10. #10
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    The idea may have its roots in the symbol used for drawing diodes in electrical schematics.
    The only time I've ever found spikes to be useful is in preventing speakers and equipment racks from putting flat spots in carpet. They improve the sound by reducing the level of disapproval from the spousal unit.
    "People hear what they see." - Doris Day

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