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darrellm

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  1. darrellm

    DC Iris Control Circuit

    darrellm replied to _neoRAGE_'s topic in Security Cameras

    here is my take, totally untested. consider the drive and brake coils as two coils of a stepper motor and the iris control lever as a rotor. I assume the iris will be positioned to the proportion of currents between drive and brake coils... with spring tension to close without power.
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