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Thread: Custom power transformers

  1. #1
    Join Date: Jul 2010

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    Default Custom power transformers

    Hi good AoS members

    I'm looking for transformer manufacturers that take on custom work, or if you like build transformers to my specifications

    So far i have looked at Airlink Transformers who definately look like they could cater for my needs with some nice big toroids, i have also found a place about a mile from my house that can also make custom transformers. The problem being here is they'll be standard E & I transformers & thus at 2KVA they'll be kind of heavy These might be ideal though as i could pick them up once built rather than having them couriered to me. They also look like they could be a better price as well

    I'm sure that 6 (six) 2000VA transformers are going to be bloody heavy whether they are toroids or not, but as i'd rather use toroids i'm open to other suggestions before i go ahead & do anything

    I'm in no rush, if anyone can think of anywhere then please chirp up

    Before anyone mentions Antrim Transformers they might like to have a go at navigating their site
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

  2. #2
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  3. #3
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    Faster than an electric flash of a shorted secondary winding

    Many thanks Richard Looks interesting & probably worth considering having had a quick read

    No harm in asking for a quote
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

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    I like to use Avel Lindberg

  5. #5
    Join Date: Jan 2008

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    I'm surprised no-one so far has mentioned Sowter: http://www.sowter.co.uk/

    Six 2000VA trannies - what the hell are you building, Mark, an amp with which to arc weld?

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

  6. #6
    Join Date: Jul 2010

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    Looks like another possibilty, thanks Andr'e Only thing is their standard range only goes up to 1KVA, bigger might be quite a bit more expensive

    I'll take a look at Sowter in a second, thanks Marco

    @ welding, no i'm going to make 6 amplifiers & equip each with a big transformer We all know that a big PSU does a better job, just look at the Techie driven by an SR5
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

  7. #7
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    As they say in America about their cars "there ain't no substitute for cubes"
    Alex

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  8. #8
    Join Date: Jun 2010

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    Tiger Toroids

    If you tell them it is for audio, thay can add mechanically stabilised core and additional wrapping between primary and secondary coils.
    They will build toroids up to 6KVA.

  9. #9
    Join Date: Jul 2010

    Location: North Cambs UK, Earth, Sol, Orion - Cygnus arm of galaxy

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    Thanks Andy I honestly don't think i'd like to handle a 6KVA transformer, my Krell KSA250 has a 4.5KVA & it weighs about 85lbs

    Definately looks like another worth contacting for a quote


    You guys are great, frankly i didn't know there were so many manufacturers out there, i'll be spoilt for choice soon

    Quote Originally Posted by Alex UK
    As they say in America about their cars "there ain't no substitute for cubes"
    You got it in one Alex, the PSU is the engine! Give it a small one & don't expect the best performance
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

  10. #10
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,479
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    Aye, just like yer 'tadger'!

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & regulator mods]. Funk Firm APM Achromat with Nagaoka GL-601 Crystal Record Weight. Isonoe feet & boots. Ortofon RS-212D tonearm with Denon DL-103GL, in a Denon PCL-300 headshell, fitted with Funk Firm Houdini and Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. Power Amps: Tube Distinctions Copper Amp, fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.

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