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Amplifier Transformer Group Buy

Discussion in 'd.i.y.' started by 337alant, May 15, 2021.

  1. 337alant

    337alant Negatively Biased

    OK I have started a list for finish, Terry has no problem for making any finish for individuals
    let me know what you want and I will forward to Tiger toroid's
    I will receive 2 toroid's as samples to test first before the rest are made.
    The default finish is Matt Black tape and potting compound.

    1. 337alant = 2 transformers, 1 clear tape, 1 matt black tape, both black potting compound
    2. John Luckins = 2 Transformers, ?
    3. Lanser = 1 Transformer, Red Tape and potting compound
    4. Christn = 1 Transformer, ?
    5. JimmyB = 1 Transformer,?
    6. S-Man = 1 Transformer Matt black or clear, black potted core
    7. Eddie = 1 Transformer, ?
    8. Say it as it is = 1 Transformer, Matt black tape and potting compound
    9. Bugbear = 1 Transformer, ?
    10. RonR = 1 Transformer,?


    Alan
     
  2. chrisn

    chrisn pfm Member

    Red tape black pot, but don't really mind!
     
  3. bugbear

    bugbear pfm Member

    I'll piggy back and also request red (matt) tape, black pot.

    BugBear
     
  4. 337alant

    337alant Negatively Biased

    OK List updated

    1. 337alant = 2 transformers, 1 clear tape, 1= matt black tape, black pot, 2 clear tape black pot
    2. John Luckins = 2 Transformers, ?
    3. Lanser = 1 Transformer, Red Tape and potting compound
    4. Christn = 1 Transformer, Red tap black pot
    5. JimmyB = 1 Transformer,?
    6. S-Man = 1 Transformer Matt black or clear, black pot
    7. Eddie = 1 Transformer, ?
    8. Say it as it is = 1 Transformer, Matt black tape and potting compound
    9. Bugbear = 1 Transformer, Red Tape/ black pot
    10. RonR = 1 Transformer,?
     
  5. 337alant

    337alant Negatively Biased

    I got this information from TT today related to the colour code to the Primary and secondary leads

    primary
    0 - 230v - 240v - 250v
    blue black brown violet

    secondary
    35v - 0 - 35v 5A
    yellow red yellow
    grey pink grey

    42v - 0 - 42v 0.7A
    black orange black
    violet white violet

    0 - 12v 1A
    green green


    The finish will be clear polyester tape unless specified.
     
    JimmyB and bugbear like this.
  6. JimmyB

    JimmyB pfm Member

    Ok, Matt black and black I reckon
     
  7. 337alant

    337alant Negatively Biased

    1. 337alant = 2 transformers, 2 clear tape black pot
    2. John Luckins = 2 Transformers, ?
    3. Lanser = 1 Transformer, Red Tape and pot
    4. Christn = 1 Transformer, Red tap black pot
    5. JimmyB = 1 Transformer, Matt black tape and pot
    6. S-Man = 1 Transformer Matt black or clear, black pot
    7. Eddie = 1 Transformer, Matt black tape and pot
    8. Say it as it is = 1 Transformer, Matt black tape and pot
    9. Bugbear = 1 Transformer, Red Tape/ black pot
    10. RonR = 1 Transformer,?
     
  8. longmanjon

    longmanjon pfm Member

    im looking to build a pair of avondale M130 which transformers would be the best fit, using ncc200?
     
  9. JimmyB

    JimmyB pfm Member

    The Group Buy transformer specification would be ideal as you could keep the extra 42V secondaries for when you need then for a 'Voyager' type build. It's not for a mono build though.
     
  10. longmanjon

    longmanjon pfm Member

    ok thanks Jimmy, i am looking for 2 for mono amps. anyone know of a decent one i could buy anywhere?
     
  11. say it as it is

    say it as it is pfm Member

    I got a pair for monos from tiger good price great stuff
     
  12. longmanjon

    longmanjon pfm Member

    do you have a link for them and which model to look at?
     
  13. say it as it is

    say it as it is pfm Member

  14. 337alant

    337alant Negatively Biased

    @longmanjon Just ask Tiger Torroids to make 2 transformers up to what ever spec you want.

    The M130 just has a single Secondary of 35-0-35VAC
    If you plan to maybe make them into Voyagers in the future get another seconday of 42-0-42VAC (make sure your case is big enough to allow for upgrade to Voyager)
    If you want speaker protection other that the Velleman (240V) ask for a 3rd secondary of 0-12VAC

    If you want al the options we have agreed on in this thread the you basically need half of the secondarys but 2 x 420VA transformers as follows:-

    Primary: 0-230/240/250v
    Electrostatic screen
    Secondary 1: 35-0-35V @ 5A rms - 350VA
    Secondary 2: 42-0-42V @ 0.7A rms- 58.8VA
    Secondary 3: 0-12V @1Arms - 12VA
    GOSS band
    Mounting: M8x30mm bush In a potted centre,
    Heavy gauge lead outs 300mm long
    Alan
     
  15. longmanjon

    longmanjon pfm Member

    thats great thanks Alan.
    i do not intend on making them voyagers,
    as i am using avondale ncc200 and cap6 boards, what VA and primary should i use?
     
  16. 337alant

    337alant Negatively Biased

    If you live in the UK I personally would just go for a Primary of:-
    Primary- 0-240VAC
    If you want the primary options for 230, 240 ,250V then use the one below

    Primary: 0-230/240/250VAC
    Electrostatic screen
    Secondary 1: 35-0-35V @ 5A rms - 350VA (or 4Arms -280VA would be OK)
    GOSS band
    Mounting: M8x30mm bush In a potted centre,
    Heavy gauge lead outs 300mm long

    You will have to ask the manufacturer for the Dia and height of the finished transformer to see if it will fit in your case ?

    Alan
     
  17. firestorm

    firestorm pfm Member

    I've just ordered a pair of 400VA core for my newly acquired hacker naps.
    They're going to be made into mono blocks.
    Similar secondaries as the 1KVA cores, but half the secondaries per trafo.
     
  18. JimmyB

    JimmyB pfm Member

    Can I ask how much they were?
     
  19. RonR

    RonR pfm Member

    Just caught up with this thread - Matt black tape and pot for me please if it's not too late, otherwise I'll take any colour you like!
     
  20. 337alant

    337alant Negatively Biased

    OK Ron Ill pass it on to Tiger

    Update Tiger Toroid have received the new cores today and will start building transformers tomorrow
    His plan is to build my 2 and send them to me for testing Ill check them an give the green light to complete the production

    Alan
     
    chrisn likes this.

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