The Dynaco Tube Audio Forum

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The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


2 posters

    PH-16 Tube rectifier vs diode mod

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    mdelrossi


    Posts : 5
    Join date : 2018-12-07

    PH-16 Tube rectifier vs diode mod Empty PH-16 Tube rectifier vs diode mod

    Post by mdelrossi Mon Jan 21, 2019 12:08 pm

    Any one here do a Tube to Diode mod to the power supply?
    If so what were the differences?

    Thanks
    mdr
    Roy Mottram
    Roy Mottram
    Admin


    Posts : 1839
    Join date : 2008-11-30

    PH-16 Tube rectifier vs diode mod Empty Re: PH-16 Tube rectifier vs diode mod

    Post by Roy Mottram Mon Jan 21, 2019 7:22 pm

    your B+ will go up 20-30vdc, some parts of the HV regulator may overhead, and if you've got good ears you may hear a harshness or edge to the sound,
    none of which I would recommend to save a $5 tube.
    avatar
    mdelrossi


    Posts : 5
    Join date : 2018-12-07

    PH-16 Tube rectifier vs diode mod Empty Re: PH-16 Tube rectifier vs diode mod

    Post by mdelrossi Wed Jan 23, 2019 5:34 pm

    Thanks.
    I was wondering if it would change the sound.

    Are there sound differences in 12x4 tubes?
    Roy Mottram
    Roy Mottram
    Admin


    Posts : 1839
    Join date : 2008-11-30

    PH-16 Tube rectifier vs diode mod Empty Re: PH-16 Tube rectifier vs diode mod

    Post by Roy Mottram Wed Jan 23, 2019 7:25 pm

    I don't have "magic" or audiophile grade hearing, I can't hear any difference in rectifier tubes, but some people claim they can

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    PH-16 Tube rectifier vs diode mod Empty Re: PH-16 Tube rectifier vs diode mod

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