Joyo Sweet Baby Tweed Champ clone

Discussion in 'Amp Central Station' started by teza, Jan 12, 2016.

  1. AJBaker

    AJBaker Friend of Leo's

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    It was a bit noisy, and didn't quite have enough gain (see post number 3 in this thread).
     
  2. AJBaker

    AJBaker Friend of Leo's

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    ... But I bet putting in that cathode bias cap would have solved a lot of that.
     
  3. FredAU

    FredAU TDPRI Member

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    I bought one locally about a year ago. Have had no issues with this amp at all.

    Very well made, especially at the price which here in Australia is about $200aud or about $150usd.

    Plenty of grunt for a bedroom/practise amp, couldn't wait to get rid of my Mustang 11 which I was using, the Mustang is not in the same ball park as these "Sweet Baby's" :D

    Only thing I have done with mine is removed the name plate, for my needs the stock speaker and tubes are fine. Just for reference the one I bought came with a cheap Eminence, model is EGTR-S108. Fine for me, plenty of Fender type twang.

    Recommend these without hesitation.

    joyo 1.JPG joyo 2.JPG
     
  4. engineer

    engineer Tele-Meister

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    Thanks Fred!

    Mine came with a Celestion Super-8. But I just put in a Jensen C8R. It's a different animal now.
     
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  5. Duotone

    Duotone TDPRI Member

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    Looks great!

    How did you remove the name plate? Was it glued? And is the cabinet clad with black colour tweed or is this some kind of fake carbon fibre structure?
     
  6. AJBaker

    AJBaker Friend of Leo's

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    Looking at that photo (thanks btw!) it does look to me like a 10" would fit. That would be pretty cool, as there are a whole lot more options that way.
     
  7. Alamo

    Alamo Doctor of Teleocity

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    The name plate is held by four screws and glue. I slid a knife under it to remove.
    no black tweed, the tolex has this fake carbon fibre structure.

    for real estate eyeballing, the empty cab looks like this: ;)

    FameCab.jpg
     
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  8. AJBaker

    AJBaker Friend of Leo's

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    Yes, that definitely looks big enough, provided the magnet doesn't stick out too much.
     
  9. engineer

    engineer Tele-Meister

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    Thanks Alamo!

    One just needs to open the baffle up. For me, I just want it to be a nice Champ. But I do have larger speaker I can connect when I need to.

    So, are you getting another AJ? ;)
     
  10. FredAU

    FredAU TDPRI Member

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    The cabinets are actually pretty good considering the price but having said that these little beauties would look schmick in traditional tweed.
     
  11. engineer

    engineer Tele-Meister

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    We all want that Tweed! :)

    I'm sure one could dress the cab in Tweed, or buy a pre-made Tweed cab. Or make one from scratch.
     
  12. AJBaker

    AJBaker Friend of Leo's

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    Thinking about it. Customs handling fees is always an issue when ordering stuff for Switzerland. Often I'll wait, and have it sent to a friend in Italy instead.

    Also, there's a Marshall dsl40c I'm trying to get rid of, before I buy a new amp.
     
  13. teza

    teza TDPRI Member

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    Hi

    I'm thinking about changing the OT for a better one to improve the sound. I've done on another amp a Blues Junior and did change a lot of thing.

    I found this http://www.classictone.net/40-18030.html but now I have to found someone in Paris who can do it for me as I'm really crap and don't want to do something stupid.
     
  14. teza

    teza TDPRI Member

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    Hi

    I'm thinking about changing the OT for a better one to improve the sound. I've done on another amp a Blues Junior and did change a lot of thing.

    I found this http://www.classictone.net/40-18030.html but now I have to found someone in Paris who can do it for me as I'm really crap and don't want to do something stupid.
     
  15. teza

    teza TDPRI Member

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    Hi,

    I found these pictures on another thread on this site. I think they could be usefull to some body.

    [​IMG]

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    Cheers
     
  16. AJBaker

    AJBaker Friend of Leo's

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    I have the amp! Got it as a birthday present!
    First impression is that it has a nice fairly clean sound, but pretty noisy at full volume.
    I decided to try adding the cathode bypass cap right away, and what an improvement! Rich, full beautiful distortion, and fantastic touch response. Also, I can have it at full volume with only very little noise now. I can't understand why they left out that cap. Even fender puts that cap in its current 57 champ.
    I also tried it through a 12", and it sounds great!
    I'm happy☺!
     
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  17. Alamo

    Alamo Doctor of Teleocity

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    Congrats and welcome back to the club.
    what specs should the cathode bypass cap have?

    actually a different tube sorted the initial noise for me.
    love the throaty growl the amp puts out. a bit like a shot voice afer yelling too much. heh.
     
  18. AJBaker

    AJBaker Friend of Leo's

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    I used a 22uF 25v cap, which gives a gain boost over all frequencies. I was almost shocked at how much better it sounded, up until then I didn't get what the fuss was with champs.
     
  19. engineer

    engineer Tele-Meister

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    Happy Birthday! And! Happy New Amp Day!

    I'm glad you finally got a sweet amp!
    Would you mind sharing some sound clips of your mod and maybe some photos of what you did?
     
  20. teza

    teza TDPRI Member

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    Hi

    Could you tell us where to put this cap ? Maybe some pics will help.

    Thanks.
     
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