Modded Marshall My Take On Hg Jose

Discussion in 'The Workbench' started by NewReligion, Feb 11, 2019.

  1. NewReligion

    NewReligion Well-Known Member VIP Member

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    Thanks to Guitar Rocker for aiding in running down the run away motorboat lmao!

    I know this circuit has been beaten like a dead horse but it is cool to have in the arsenal. I will continue to evolve it to my taste as we all do.

    I give credit to Mark Cameron for taking Jose Arredondo’s best work likely and making a polished improvement.

    My take on a High Gain Jose. Same circuit Blades does without the switches. I took the components I preferred and changed some values and types.

    David

     
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  2. stringtree

    stringtree Active Member

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    You did that Jose circuit justice! :dude:

    You can keep beaten that dead horse, if that means you would post more playing on that amp!
     
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  3. Bloodrock

    Bloodrock Well-Known Member

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    Awesome man! But please refrain from mentioning Billy Blades when it comes to mods. That guy is nothing but bad news.
     
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  4. HOT TUBES 70

    HOT TUBES 70 Well-Known Member

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    Sounds HUGE !!!!
     
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  5. NewReligion

    NewReligion Well-Known Member VIP Member

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    Thank you very much.

    David
     
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  6. NewReligion

    NewReligion Well-Known Member VIP Member

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    Right, but I had to give a mention of the
    Lineage Back to Jose.

    David
     
  7. NewReligion

    NewReligion Well-Known Member VIP Member

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    Thanks HOT TUBES 70!

    Hope to work in a clean footswitchable channel at some point soon.

    David
     
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  8. Guitar-Rocker

    Guitar-Rocker Well-Known Member

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    Happy to be of help David. Interesting tone.

    I rebuilt a low watt version of that Billy Jose amp. It was the amp that Billy built for Steve. Steve tore that Blades amp apart and rebuilt into great condition, after Biily's horrible first attempt of a build.

    I received the amp from Steve after he played it awhile, it had the same base circuit as yours, but those EL84's in it had a screech to them. It was significantly improved after I converted it over to 6V6's. Steve likes it way better too.
     
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  9. NewReligion

    NewReligion Well-Known Member VIP Member

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    After speaking with you and having a go at a Friedman PT20 with EL84’s I understand now how they can be easily pushed to producing negative anomalies.

    Thanks again for the priceless lessons.

    David
     
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  10. RickyLee

    RickyLee Well-Known Member VIP Member

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    Sounds excellent David.

    I have that circuit in my home made Plexi Rod at the moment. I went off two slight variations of the schematics posted on the InnerWebZ. Obviously, I do not have a real authentic amp to verify if the schems I used are legit. I am figuring they are not as I do not have anywhere near the saturation and sustain you just demo'ed. I got frustrated and tried tinkering in a few areas, then lost my desire to screw with it as the amp has been sitting for awhile. I probably would have already ripped it back out of the amp but ran in to some health issues and family stuff.

    Anyway, I am wondering if that amp you just demo'ed has the same topology/gain stages as my project, which is basically the same amount of gain stages as a standard 2203/4. Or does yours have an added gain stage, more like the hot rodded Marshall circuit?

    And are you using the zener clipper in that clip?
     
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  11. BftGibson

    BftGibson Well-Known Member

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    beat and beat on it some more i am getting tired of bedroomcore at whisper level jcm800 tiny amp.stuff ..bring the noise,,,vol up !! Marshall is like a powerband on dirtbike kickin in at 8,000 rpm..get the volume up to volume and then go for the ride !! you know that spot on the vol where it thumps and the roar just is...every Marshall i own does it...wont play any other way..i have X amt of years left on earth and it aint gonna be at 5 watts and a 10" speaker
     
    Last edited: Feb 11, 2019
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  12. NewReligion

    NewReligion Well-Known Member VIP Member

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    Hi Rick. I hope you get well soon my friend.

    It is three stages of gain with Zeners. Look up Blades Firebolt layout. Stay with it. You don’t need the switches just pick and choose options until your ears agree lol.

    There are loads of data on this circuit. Layouts of Crriatones Chips and Yeti etc...

    Stay with it!

    David
     
    Last edited: Feb 11, 2019
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  13. NewReligion

    NewReligion Well-Known Member VIP Member

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    Agreed, thank you.

    David
     
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  14. NewReligion

    NewReligion Well-Known Member VIP Member

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    Well I was going to keep this amp but someone reached out and decided they would like to have it.

    David
     
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  15. Guitar-Rocker

    Guitar-Rocker Well-Known Member

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    Lucky for them. Build another for yourself.
     
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  16. NewReligion

    NewReligion Well-Known Member VIP Member

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    I sure will my friend.

    David...♫
     
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  17. wakjob

    wakjob Well-Known Member

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    Hey David, of all the schematics floating around the net,
    which one is the most correct Jose/Cameron-ish?

    I know there are few things left out on a lot of them,
    like voltages at certain important nodes, ect...
     
  18. NewReligion

    NewReligion Well-Known Member VIP Member

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    Both Blades Firebolt & Ceriatone Yeti/Chupa will get you there. The Marshall Drakes & Dagnalls help IMO.

    I prefer the Blades with some changes.

    David
     
    Last edited: Feb 14, 2019 at 12:37 PM
  19. scottosan

    scottosan Member

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    At lease the Blades layout that Steve posted on another forum was way off, the Chuppacabra is closer to Fortins take. The Yeti perhaps being the closest to Cameron but falling short. But let's be honest. There is now Cameron correct schematic because I have yet to see 2 builds done identical, even when he was doing CCVs with a PCB, he used variations of his circuit .The only thing that can be said by me is that there are things mark does that reappear in most of his amps and there are thing that people continue to screw up, like the NFB and punch circuit and variation inntjenvalies of those spots that are tailored to every build to brighten or darken the amp
     
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  20. NewReligion

    NewReligion Well-Known Member VIP Member

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    Right. He told as much. Stating that many are one off’s.

    I read my voltages now and adjust for consecutive builds. Every person gets a customer okay video. There is little reason other than OT for great variations between amps. I have only done about 60 this past year but I learned from it.

    David
     

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