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


5 posters

    Hammond 1650E

    Junksleep
    Junksleep


    Posts : 6
    Join date : 2023-05-01

    Hammond 1650E Empty Hammond 1650E

    Post by Junksleep Sat Jun 24, 2023 10:56 pm

    To the collective, would Hammond 1650E be an ok to good replacement for ST35 SCA35 output transformers.
    Kevin at Dynakitparts shows out of stock on these. Kind regards.
    avatar
    ELBill34


    Posts : 16
    Join date : 2013-04-10
    Location : Chicago

    Hammond 1650E Empty Re: Hammond 1650E

    Post by ELBill34 Wed Jun 28, 2023 9:56 am

    That should be OK.
    I think I read somewhere that the Dynaco UL taps are at 25% but the Hammond are 40%.
    So if that's true, (I'm sure someone here and verify or correct me) you will be a little closer to triode mode.
    If you have the room you could try and Edcor CXPP25-7.6K
    Slightly beefier, rated at 25W and as they are made to order, you can get them either with a selected single output or with a 4/8/16 ohm tapped output. UL taps also at 40%
    here's the link

    https://edcorusa.com/collections/tube-amplifier-push-pull-output-transformer/products/cxpp25-7-6k-25w-7-6k-ohms-push-pull-tube-output-transformer?variant=41462552592571

    Bill K.

    Junksleep likes this post

    peterh
    peterh


    Posts : 1833
    Join date : 2012-12-25
    Location : gothenburg, sweden

    Hammond 1650E Empty Re: Hammond 1650E

    Post by peterh Wed Jun 28, 2023 10:00 am

    Junksleep wrote:To the collective, would Hammond 1650E be an ok to good replacement for ST35 SCA35 output transformers.
    Kevin at Dynakitparts shows out of stock on these. Kind regards.
    Personally i would wait until a dynaco transformer is available.
    Blitzen
    Blitzen


    Posts : 63
    Join date : 2009-07-10

    Hammond 1650E Empty Re: Hammond 1650E

    Post by Blitzen Thu Jun 29, 2023 11:46 am

    PM me, I've got transformers.

    Junksleep likes this post

    Dan W
    Dan W
    Admin


    Posts : 16
    Join date : 2021-12-18
    Location : Owner - Tubes4Hifi

    Hammond 1650E Empty Re: Hammond 1650E

    Post by Dan W Thu Jul 13, 2023 8:09 pm

    Junksleep wrote:To the collective, would Hammond 1650E be an ok to good replacement for ST35 SCA35 output transformers.
    Kevin at Dynakitparts shows out of stock on these. Kind regards.

    I have these in stock. They are on the site.
    http://tubes4hifi.com/AMP-PARTS.htm

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    Hammond 1650E Empty Re: Hammond 1650E

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