Do you have a recommended pull-down resistor size/spec for what will be battery connected inputs? It's an old classic car and I want to keep the switch gear original so I don't think I can switch the inputs between +ve and -ve.
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Pull down resistor recommendations
Pull down resistor recommendations
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As of June 2020, all PDM 15 and PDM25s have a week pull down resistors installed internally of 1Mohm. If fast input switching is required, it is still recommended to install an external pull down resistor.