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What type of contacts to add?

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  • What type of contacts to add?



    I want to add some extra traps, orchestra bells &amp; midi things to a Conn 651.</p>

    Since I can't disconnect anything, I'll need to add another contact strip either on top of the keys or below them. Its an analog organ so there are no +12 or other voltage keying contacts I can tie to.
    </p>

    What is suggested or most commonly done? Some of the choices seem to be *microswitches *optical interrupters *magnetic reeds *magnetic hall effect sensors *or???</p>

    </p>

    Is positive(old organ type) or negative(typical electronic) keying mostly used?
    </p>

    Does anyone make add-on contact assemblies?</p>


    </p>
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