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Strange 'Lunchbox' amplifier

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  • Strange 'Lunchbox' amplifier

    Anyone ever see one of these puppies before?

    Click image for larger version

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    Output ic is a TDA2030.

    It has two 9V battery holders in series.

    No clean signal at all.
    It's distortion or more distortion.

    Sounds good for what it is.

  • #2
    Are you sure its not home-made? It seems to have a "cigar box guitar" aesthetic. Is that speaker grill cannibalized from a vegetable steamer????

    EDIT: Does it have one of these ~$1.25 Chinese amplifier boards inside?
    https://www.ebay.com/sch/i.html?_fro...a2030&LH_BIN=1

    -rb
    Last edited by rjb; 05-12-2018, 06:03 AM.
    DON'T FEED THE TROLLS!

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    • #3
      It does not appear to be a one off, home made amp.
      The pocket for the PCB is milled out.
      On off switch, LED indicator, polarity diode on the PCB for the battery + voltage, two 9volt battery compartments.

      Click image for larger version

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      The covering is made to have international hotel stickers all over it, like a suitcase.

      The only markings on it are on the snap buttons.
      "MCD"
      "More Core Division".

      Click image for larger version

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      • #4
        Well, I got the word from the owner.

        Yes, it is a one off.
        The amplifier guts came from another battery powered amp.

        And, the grill is indeed from a food processor.

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        • #5
          I think it is fantastic.

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          • #6
            Originally posted by Jazz P Bass View Post
            And, the grill is indeed from a food processor.
            For everyone's sake, I sure hope that food processor was already broken....
            DON'T FEED THE TROLLS!

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            • #7
              Food processor blade helps the tone cut through the mix.

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              • #8
                Originally posted by glebert View Post
                Food processor blade helps the tone cut through the mix.
                Darn. Why didn't I think of that one?
                Well played, sir.

                -rb
                DON'T FEED THE TROLLS!

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                • #9
                  Reminded me of this old chestnut.

                  I always kind of wanted one (they did guitar and ukelele versions) but unfortunately they had a very short lifespan. In both availability and physical reliability.

                  Click image for larger version

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                  • #10
                    I suggested a speaker out jack as it has a decent TDA2030 IC for an output.
                    I used a jack that cuts out the existing speaker when a cab is loaded in.

                    With 24Vdc into the dc jack (that I added) it sounds pretty gnarly into a Marshall 4 x 10 stack.

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                    • #11
                      Originally posted by glebert View Post
                      Food processor blade helps the tone cut through the mix.
                      I thought it was the built-in rotary speaker, so you don't have to haul the Leslie around.

                      Justin
                      "Wow it's red! That doesn't look like the standard Marshall red. It's more like hooker lipstick/clown nose/poodle pecker red." - Chuck H. -
                      "Of course that means playing **LOUD** , best but useless solution to modern sissy snowflake players." - J.M. Fahey -
                      "All I ever managed to do with that amp was... kill small rodents within a 50 yard radius of my practice building." - Tone Meister -

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                      • #12
                        2 x 9V batteries supply are a brickwall, but an external power jack and a real supply should make it work properly.
                        Juan Manuel Fahey

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                        • #13
                          Yup.

                          Added an external dc jack.

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