Help with identifying this "Blues Jr"

Discussion in 'Glowing Bottle Tube Amp Forum' started by KPAE, Jul 20, 2019.

  1. KPAE

    KPAE TDPRI Member

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    Hi,

    This was advertisied as a Fender Blues Jr, by a reputable vendor, with no provenance.

    I got this just for the cabinet, chassis, and transformers, and planned to gut it anyway.

    However, once I opened it up, I found this


    Anybody got any idea what this was originally?
     
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  2. JCW1024

    JCW1024 Tele-Meister

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  3. ICTRock

    ICTRock Tele-Afflicted

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    It was a blues jr but someone hacked it all up
     
  4. LeicaBoss

    LeicaBoss Tele-Holic Gold Supporter

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    Oh man. That would give me some major anxiety.
     
  5. KPAE

    KPAE TDPRI Member

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  6. JCW1024

    JCW1024 Tele-Meister

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    Could be that someone just did a similar project with theirs in the US. Or, the same person also redid this one, then the amp decided to find its own way, went to check out Japan, hitched a ride on a Merchant Marine vessel, kicked around the canneries in Alaska for while, caught a ride hitchhiking down the coast, fell on hard times, and ended up selling itself to a reputable vendor in Fresno.

    Either way, how does it sound?
     
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  7. bftfender

    bftfender Friend of Leo's

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    i would take the conversion any day..
     
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  8. King Fan

    King Fan Friend of Leo's Ad Free Member

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    *Extremely* impressive. The odds the amp could get from Melbourne to Seattle seem exceeded by the odds that someone here could ID it on the first go.
     
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  9. Bill Moore

    Bill Moore Tele-Afflicted Silver Supporter

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    I bought the plans for a BJ circuit board conversion from Torres that look a lot like that, especially the board used, and even the Weber rectifier.

    Edit:
    I got a chance to look at the PDF on my other computer, and even the transformer placement is the same as in the Torres conversion.
    (If you didn't pay too much, you got much more than you thought you had!)
     
    Last edited: Jul 21, 2019
  10. rangercaster

    rangercaster Poster Extraordinaire

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    I am no expert ... But i don't see PCB construction ...
    So it could be anything ...
     
  11. powerwagonjohn

    powerwagonjohn Tele-Meister

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    wrong post
     
  12. KPAE

    KPAE TDPRI Member

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    Sounds about right, just need to add in the part about getting butchered up so bad!
     
  13. Uncle Daddy

    Uncle Daddy Tele-Holic

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    Remember Oz is 230V on the outlets. Might wanna check the PT.
     
  14. King Fan

    King Fan Friend of Leo's Ad Free Member

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    Just so we’re clear, the theory would be this is a BJ that's been revised to handwired. Not a bad thing. And we think it was modded. Not a bad thing. 'Butchered' sounds bad somehow... or was it "upgraded?"


    Sent from my iPad using Tapatalk
     
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  15. Bill Moore

    Bill Moore Tele-Afflicted Silver Supporter

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  16. Commodore 64

    Commodore 64 Friend of Leo's

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    Looks like someone added a channel switching relay board. There's a choke.

    There's a copper cap module and what also looks like a big bridge rectifier. A giant OT, a small OT for the reverb, tube driven maybe, that's what those big ass filter caps are for on the outside. Maybe there's a Fender standalone reverb circuit in there?

    Looks like a ganged pot, so a true Lar Mar MV maybe?

    I don't know if it's been butchered. But it's loaded with stuff I'd like in an amp.
     
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  17. Bill Moore

    Bill Moore Tele-Afflicted Silver Supporter

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    The relay adds another side of the tube for more gain, sort of an "improved" "fat" switch on the original.
     
  18. old wrench

    old wrench Tele-Holic

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    Some one put some serious time and effort, not to mention $$$, into that conversion :).




    Best Regards,
    Geo.
     
  19. KPAE

    KPAE TDPRI Member

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    Thanks for all the responses!

    Some more information courtesy of Saverio Cardo of Tube Tone Amplifiers in Melbourne Australia. While the one seen up top is not his work, he had completed one similar based on a design from Torres Engineering. It was a job to get the parts, and another job to get them to work. While his client was pleased, I didn't want to work that hard. I have posted my results over in Shock Brothers, please check it out!
     
  20. Commodore 64

    Commodore 64 Friend of Leo's

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