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Triode's AA764 Champ kit, anyone?

Discussion in 'Shock Brother's DIY Amps' started by mechanicdave, Aug 25, 2010.

  1. mechanicdave

    mechanicdave Tele-Holic

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    I have a cab with a 4ohm Greenback thats just crying out for some 6V6 goodness. I've NEVER built nor done any type of service on any amplifier before but am confidant in my soldering skills and direction following.
    I figure a kit is best for me and this one at Triode looks tempting.
    Question is, has anyone used or is familiar with this kit? Thanks, Dave
     
  2. scott from west seneca

    scott from west seneca TDPRI Member

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    Yes,Dave, I have built a 5E3 from Triode Electronics
    I thought is was a pice of cake and it sounds Killer!!!
    I have an S/S 8" combo that Iam going to use for a
    blackface Vib champ Kit for Triode.
    Chad, From Triode is very helpfull person.
    Iam a very happy with my 5E3 kit, the price cant be beat!!

    Scott
     
  3. rainedave

    rainedave Tele-Holic

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  4. EdMax

    EdMax Tele-Meister

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    The kit itself is ok, they tend to run a bit high on the B+ so be certain to use an NOS 5Y3.

    The output transformer is borderline garbage, in fact I have a couple here that I use as paper weights. They were THAT bad.
    If you replace that, it will work great!
    I use either Edcor's GXSE10-8-5K, or Music Power Supplies OT10SE as replacements especially if I go to a 12" speaker.

    You get much better range and bottom end.
    YMMV
     
  5. limbe

    limbe Tele-Afflicted

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    What size is your speaker and cab?
     
  6. EdMax

    EdMax Tele-Meister

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    I used an old 5E3 cab with a home brew chassis for mine, not exactly blackface looking, but loads of fun.
     
  7. mechanicdave

    mechanicdave Tele-Holic

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    It's about the size of a Deluxe Reverb. Just perfect for a grab and go.

    Wow ED, thats pretty rough. What type of issues did you have with them, inquiring minds want to know?

    I'm pretty sure I'll order the kit. I've got two home projects that are winding down and this build will be a nice change of pace over a weekend or two. Dave
     
  8. Tim Armstrong

    Tim Armstrong Super Moderator Ad Free Member

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    I used to buy my tubes from Triode, haven't looked at their site in a while. Gotta say, their Dynaco kit is whispering my name...

    Tim
     
  9. laird

    laird Tele-Holic

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    +1 on an OT swap for that kit. Edcor's smallest transformer, the 5W GXSE, trounces the major brands' Champ OTs with ease (and a wider frequency response). Best of all, it costs less than the kit's OT. The 10W version is downright huge, easily capable of pushing a 6L6 without breaking a sweat. Definitely worth the made-to-order wait.

    -Laird
     
  10. EdMax

    EdMax Tele-Meister

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    No bandwidth at all, if you push up the current to the norm with a 6V6 it saturates way over the top. I also had problems with the polarity being incorrect. Be prepared to reverse the primary leads, (leave them long until established)
    The spec says its good for 40ma, but this is clearly a stretch,

    Yep, all of that & a Beer!
     
  11. limbe

    limbe Tele-Afflicted

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    I guess you need a good push-pull output transformer with a primary of 8-10 kohm and a secondary of 4ohm then.Good luck with your amp mechanicdave!
    Limbe
     
  12. EdMax

    EdMax Tele-Meister

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    I should really add that Triode sells excellent transformers, it is just that particular transformer that simply is not of reasonable quality or spec. They have been selling those for ages and why it has never been updated is still a mystery.

    Almost all of their transformers are made by Magnetic Components Inc & Marvel Electric. Both companies produce great products.
     
  13. telex76

    telex76 Doctor of Teleocity Ad Free Member

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    I did their Vibro Champ kit for a build. Was basically happy with it.
     
  14. M Fowler

    M Fowler TDPRI Member

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    I have used Triode Stores kits and the components are high quality. I like the MC transformers for price and tone. I have used MC for Dumble, Fenders and Marshalls types without problems.
     
  15. jed

    jed Tele-Meister

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    I built Triode's Vibro Champ kit into a 2x10 top-mounted controls cab. I had to replace the OT as per EdMax. I went with Heyboer's TO8C from Allen Amps. It has both 4 and 8 ohm leads. The resulting tone is awesome!

    And yes, find a good NOS 5Y3 for this amp.
     
  16. Crawfish

    Crawfish Tele-Afflicted Silver Supporter

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    Tim -

    I have one of their Dyna boards (PAS) and it's good quality. I've bought other Dyna bits from them with no problems. I'd think the kits are good also.

    My main system is a PAS and ST-70.

    -Kevin
     
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