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phone circuit & artwork

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spiny urchin

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Apr 4, 2015, 5:51:20 AM4/4/15
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I have internet long distance that charges for all outgoing calls. I also
have a land line for local calls only. I designed this circuit to switch
between land line and internet. The circuit also has a 3-way switch to turn
the entire phone service off/on from two locations in my house.

Don't mind the artwork. The circuit is in there somewhere.

http://www.stonetabernacle.com/3PHONE_CIRCUIT3.html

One advantage is if my land line goes dead I can switch to internet phone
and still make calls. I've been having a lot of that the past few months.

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