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July 22, 2019 at 10:11 am
#61806
Ray
Keymaster
Those are current limiting resistors. You only need one (either RG1 or RG2), of 1 ohm value, SMD 2512 package. We only have 2.2 ohm in stock so we populated both to make an equivalent of 1 ohm. The current limiting resistor helps in situations of shorted solenoid etc.