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

    Mosfet TDR

    bobgroger
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    bobgroger


    Posts : 18
    Join date : 2021-02-12
    • Post n°1

    Mosfet TDR Empty Mosfet TDR

    Post by bobgroger Sat Feb 13, 2021 12:42 am

    I am thinking about a slightly different Time Delay for my in-transit ST-120. Thoughts on a High voltage MOSFET switching the rectifier output maybe after the first filter cap with a 555 timer or a simple RC time delay? I am worried about relay contacts arcing. Also wondering about a inrush limiter thermistor, is it worthwhile?
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    Roy Mottram
    Roy Mottram
    Roy Mottram
    Admin


    Posts : 1838
    Join date : 2008-11-30
    • Post n°2

    Mosfet TDR Empty Re: Mosfet TDR

    Post by Roy Mottram Sun Feb 14, 2021 6:26 pm

    Hi Bob,
    hey, we've been selling the TDR for about a dozen years now and I'm not aware of any failures.
    The relay contacts are rated at 8 amps
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      Current date/time is Mon Nov 25, 2024 9:27 pm