Four 5” Micro Bassman build

Discussion in 'Shock Brother's DIY Amps' started by JohnnyCrash, May 6, 2021.

  1. King Fan

    King Fan Poster Extraordinaire Ad Free Member

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    Nah, I just hope it doesn’t have too much hum. Sweet as honey, that’s the goal. :D

    Or maybe it'll sound best with a B-bender...
     
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  2. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    Grill cloth and speakers installed.



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  3. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    Wired up the speakers. Measured DC resistance (just under 8 ohms).

    Plugged the cab into my tweed Deluxe, just to see if each of the speakers hummed when the cable was touched.

    They all made sound.

    So I just plugged a guitar in to hear them through the Deluxe. They all work, they immediately strike me as having a nice top end. Bright, with just enough warmth to keep them from being harsh. We’ll see how it sounds when I finish wiring up the guts.



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    Last edited: Jun 12, 2021
  4. robrob

    robrob Poster Extraordinaire Ad Free Member

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    I like that grill cover.
     
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  5. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    Going much slower now that the summer intersession of school started…

    I received the plexiglass back panel, carefully drilled it, and test fit it onto the cab:



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  6. willholt92

    willholt92 Tele-Meister

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    That's an awesome idea.
     
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  7. solfege

    solfege TDPRI Member

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    I love this and cannot wait to see how it turns out.
     
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  8. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    Not much progress (life happens), but I did mock up the chassis and clear plexi back panel.

    I’m still prepping the brass faceplate, so the photo of the top is more for an idea about control layout.



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  9. King Fan

    King Fan Poster Extraordinaire Ad Free Member

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    @JohnnyCrash , I'm sure you said, but what chassis are you using? Cool that it fits in the bee box, tho IIRC you had to really squeeze in the pots.

    I'm eating up all this good bee box info, but I'm also hungry for all details of the electronics wiring and fitment. :)
     
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  10. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    It’s a Hammond aluminum blank.

    I sorta thought through the dimensions and controls in my head, basically thinking about using a Mojo tweed Princeton cab w/cutout.

    Then I saw someone on FB posting about their bee box 5E3 Deluxe.

    After that, I was like “I can save a ton of money!” Then I got another bee box, for another (re)build :D
     
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  11. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    More progress.

    Preparing the plate using permanent marker ink as a chemical Resist. Also used rubberstamps (and permanent ink) for the images.

    Then it’s sitting in the ferric chloride for 50 minutes. Afterwards a bath in water and baking soda to neutralize the acid.

    Then I aged the plate and polished the raised parts with 00 steel wool.

    Next and final step is to mount the PT and solder up the guts.


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  12. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    A wider shot:


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  13. NTC

    NTC Tele-Holic

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    I like it! What is the sun for again?
     
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  14. King Fan

    King Fan Poster Extraordinaire Ad Free Member

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    Wow. Nice!!!
     
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  15. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    Thanks! The sun is for the Presence control.
     
  16. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    Installed the mini chickenhead knobs.



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  17. wangdaning

    wangdaning Tele-Meister

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    Very nice build. I am planning to do an etched faceplace, what thickness did you use?
     
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  18. JohnnyCrash

    JohnnyCrash Doctor of Teleocity

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    I think it was 1/16th inch. I sanded the enamel off (you have to, to allow the etching chemicals to do their thing), but not much was required for that.

    My next build’s etching I’ll experiment and leave it in a little longer, just to see if it digs a little more out. Though, it’ll be on steel, so I want a greater contrast.
     
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