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Unread 13-02-2013, 12:39
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Re: Rookie Pneumatics Help

(Seconding Coffeeism)

The single solenoid requires a constant signal for the piston to stay extended, where as the double would have IN/OUT logic - trigger the solenoid, it goes out and stays out, trigger again and it goes in and stays in. It would require another Spike relay (one for the in and one for the out), but may alleviate the issue of constant (albeit small) current to the solenoid.
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