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Subject: Re: disable 2 wires while the other one is conducted

Date: 03/12/03 at 11:24 PM
Posted by: Russ Kincaid
E-mail: russlk@netzero.com
Message Posted:

In Reply to: disable 2 wires while the other one is conducted posted by janet on 03/10/03 at 12:31 PM:

Let's see if I understand: If 9 volts is applied to one of 3 wires, the voltage is passed on to a load. If 9 volts is later applied to either of the other two wires, there is no effect. Correct?

You can do this with 3 DPDT relays (double pole, double throw). Remember that NC contacts (normally closed) in series can be an OR function. Put them in series with the coil.

That should be enuf for you to figure it out.


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