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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


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    Recommend replacement 2000uf rectifier caps for PAS

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    Dry Rub


    Posts : 1
    Join date : 2011-02-07

    Recommend replacement 2000uf rectifier caps for PAS Empty Recommend replacement 2000uf rectifier caps for PAS

    Post by Dry Rub Sat Jan 07, 2017 1:43 pm

    I'd like to replace the selenium rectifier with diodes and replace the larger caps below it while I'm at it. While it's been easy to find info on the diode type to use, I've found so many different comments about what caps and values to use when replacing the two large 2000 uf caps. I'm not interested in a replacement board, just need someone's advice for appropriate replacements. Seems like an increase in uf value is often suggested but I don't want to choose the wrong thing when it comes to the uf or voltage values.

    Links to caps would help too! Thanks.
    peterh
    peterh


    Posts : 1823
    Join date : 2012-12-25
    Location : gothenburg, sweden

    Recommend replacement 2000uf rectifier caps for PAS Empty Re: Recommend replacement 2000uf rectifier caps for PAS

    Post by peterh Sat Jan 07, 2017 2:00 pm

    Dry Rub wrote:I'd like to replace the selenium rectifier with diodes and replace the larger caps below it while I'm at it. While it's been easy to find info on the diode type to use, I've found so many different comments about what caps and values to use when replacing the two large 2000 uf caps. I'm not interested in a replacement board, just need someone's advice for appropriate replacements. Seems like an increase in uf value is often suggested but I don't want to choose the wrong thing when it comes to the uf or voltage values.

    Links to caps would help too! Thanks.
    You install then either as the original ( needs to fit in the clamps ) or
    much better on one board ( an example below) http://n.manet.nu/tubedoc/PAS_PS-V3.0-Install.pdf
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    Guest
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    Recommend replacement 2000uf rectifier caps for PAS Empty Re: Recommend replacement 2000uf rectifier caps for PAS

    Post by Guest Sat Jan 07, 2017 2:44 pm

    .


    Last edited by PeterCapo on Thu Dec 03, 2020 11:21 pm; edited 2 times in total (Reason for editing : Voltage rating.)
    j beede
    j beede


    Posts : 473
    Join date : 2011-02-07
    Location : California

    Recommend replacement 2000uf rectifier caps for PAS Empty Re: Recommend replacement 2000uf rectifier caps for PAS

    Post by j beede Sat Jan 07, 2017 4:40 pm

    Here's the B+ and filament supplies on a single small board that fits where the selenium stack was. I get my caps from Antique Electronic Supply. The diodes from Fry's or Radio Shack.

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    Recommend replacement 2000uf rectifier caps for PAS Empty Re: Recommend replacement 2000uf rectifier caps for PAS

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