Tubbutec for Kenton modded Juno 60

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    Dear Tobias,
    I’m nearly ready to start buying all the things.
    First cab off the rank is my juno60 which has the Kenton MIDI mod installed. I expect there’s not much reason to keep the Kenton mod other than for MIDI thru. Presumably this could be implemented easily enough with a buffer and some resistors (IANAEE). I guess it could even be implemented inline/rats nest style with the Kenton MIDI sockets already installed.

    My main question is whether you have come across any Kenton modded juno60’s – are there any caveats to consider in Tubbutec installation?

    Your products are amazing!
    With thanks.



    yes, if you want to add a midi through socket, you need to install an additional buffer and two resistors.

    Have a look at this drawing, which I stole from [1]:

    Here two inverters are used instead of a buffer. The input of the buffer/inverters are connected to the output pin of the optocoupler. In Case of the Juno-66, this is Pin 5 of the CNY-17 on the underside of the board. The part is pretty large (2.54mm pitch), so soldering a wire to it should be relatively simple.

    I have not come accross a Kenton install so far, but I am assuming you can remove it and have the Juno back in the original condition. This means installing the Juno-66 is not a problem.
    If you are unsure, post some pictures here (Kenton do not publish installation manuals, so it is impossible to tell if modifications were performed during the installation.

    [1] http://whitefiles.org/b1_s/1_free_guide … s/h10d.htm


    Thanks Tobias!

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