The Dynaco Tube Audio Forum

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


    Very early prototype ST70 utilizing toroidal output xfmrs.

    Share

    bozzjax

    Posts : 1
    Join date : 2012-06-14

    Very early prototype ST70 utilizing toroidal output xfmrs.

    Post by bozzjax on Thu Jun 14, 2012 4:13 pm

    I own a very early ST70 prototype amplifier. It uses AVEL TOROID output xfmrs. It's basically an ST70 utilizing potted toroidal xfmrs driven by EL34 tubes. It is a handsome unit. Apparently a feasibility study that never made it into the marketplace. Probably not cost effective considering the new solid-state entries that were entering the market. An enquiry to AVEL in England elicited no help in the history of this unique unit. Are any of this forum members familiar with this one-of-a-kind DYNACO ?
    Bozz


    Last edited by bozzjax on Thu Jun 14, 2012 4:15 pm; edited 1 time in total (Reason for editing : inadvertently dropped one word)

    Bob Latino
    Admin

    Posts : 2415
    Join date : 2008-11-26
    Location : Massachusetts

    Re: Very early prototype ST70 utilizing toroidal output xfmrs.

    Post by Bob Latino on Thu Jun 14, 2012 4:28 pm

    Hi,

    Can you post a photo of this amp on the forum here? Someone might be familiar with the amp if they see it.

    Check the sticky's above on how to post a photo ..

    Bob

    DynakitParts
    Admin

    Posts : 183
    Join date : 2008-11-30

    Dynaco ST-70 Prototype

    Post by DynakitParts on Fri Jun 15, 2012 9:54 pm


    Hi Bozzjax,
    I doubt this was a Dynaco produced product or early prototype.
    Avel Transformers LTD was Incorporated in 1983 whereas Dynaco ceased operation in
    Blackwood, NJ in 1980. This most likely is a owner modified unit...Avel transformers
    are made in China as are most products we buy today. Sad to say.

    Kevin @ Dynakit

    PS: Still would like to see a photo of this amplifier.

    Sponsored content

    Re: Very early prototype ST70 utilizing toroidal output xfmrs.

    Post by Sponsored content Today at 12:30 pm


      Current date/time is Sat Dec 10, 2016 12:30 pm