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    VTA ST-120 Alternative Transformers

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    Dogstar

    Posts : 287
    Join date : 2014-06-23

    VTA ST-120 Alternative Transformers

    Post by Dogstar on Sat Sep 09, 2017 9:48 am

    As a few may remember a month ago or so a few forum members were good enough to try out a 12AU7 to 6SN7 adapter that let me try out the octal tube in my VTA ST-120. After the test it was suggested that I should just replace the noval board altogether which I'm currently contemplating. If I do that it leaves me with a 'classic' board.

    Since I'm currently building a Tubelab SSE amp and I've already built a Glassware tube buffer I have quite a few leftover parts and I've now considered building a new amp with the old board. I hoped that Bob would sell me a set of transformers that would allow me to do that but he said all of the transformers he gets go only to kits he sells. And that's fine. I can understand not wanting to go into selling only components.

    Can anyone tell which Edcor USA transformers would be OK to use as an alternate? I don't think I've seen the specs for the VTA ST-120 transformers and I'm not an electronics expert so I'm hoping that someone that is can tell me.

    Thanks in advance,

    Dogstar
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    peterh

    Posts : 872
    Join date : 2012-12-25
    Location : gothenburg, sweden

    Re: VTA ST-120 Alternative Transformers

    Post by peterh on Sat Sep 09, 2017 10:23 am

    Dogstar wrote:As a few may remember a month ago or so a few forum members were good enough to try out a 12AU7 to 6SN7 adapter that let me try out the octal tube in my VTA ST-120. After the test it was suggested that I should just replace the noval board altogether which I'm currently contemplating. If I do that it leaves me with a 'classic' board.

    Since I'm currently building a Tubelab SSE amp and I've already built a Glassware tube buffer I have quite a few leftover parts and I've now considered building a new amp with the old board. I hoped that Bob would sell me a set of transformers that would allow me to do that but he said all of the transformers he gets go only to kits he sells. And that's fine. I can understand not wanting to go into selling only components.

    Can anyone tell which Edcor USA transformers would be OK to use as an alternate? I don't think I've seen the specs for the VTA ST-120 transformers and I'm not an electronics expert so I'm hoping that someone that is can tell me.

    Thanks in advance,

    Dogstar

    A431 from dynakitparts would be a good substitute
    http://www.dynakitparts.com/dynakit-products/transformers/A-431-transformer
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    deepee99

    Posts : 1759
    Join date : 2012-05-23
    Location : Wallace, Idaho

    Re: VTA ST-120 Alternative Transformers

    Post by deepee99 on Sat Sep 09, 2017 2:34 pm

    Consider also the hand-wound Polish toroidals. Very good workmanship and performance. I use them in my own gear.
    https://sklep.toroidy.pl/en_US/c/Toroidal-transformers-AUDIO-GRADE/75
    BTW, 1 Polish Zloty converts to $0.28 U$D.

    Dogstar

    Posts : 287
    Join date : 2014-06-23

    Re: VTA ST-120 Alternative Transformers

    Post by Dogstar on Sat Sep 09, 2017 5:18 pm

    Thanks but I want to stick with Edcor USA.
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    Peter W.

    Posts : 527
    Join date : 2016-08-07
    Location : Melrose Park, PA

    Re: VTA ST-120 Alternative Transformers

    Post by Peter W. on Sun Sep 10, 2017 7:42 am

    Dogstar wrote:Thanks but I want to stick with Edcor USA.

    I suggest you pick up the phone and give them (Edcor) a call. Most companies of this nature would prefer to have satisfied customers who will refer them to others. And so, they will spend some time to be sure of what you think you want, what you may expect, and what they have to offer along those lines.

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    Re: VTA ST-120 Alternative Transformers

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