Telephone Accessories You Can Build
Books / Paperback
Books › Technology & Engineering › General
ISBN: 0810457482 / Publisher: Sams, November 1976
Instructions for constructing and installing fifteen telephone accessories, including a remote ring...
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Instructions for constructing and installing fifteen telephone accessories, including a remote ring indicator, a speakerphone, a scramble, an autodialer, an answer machine, and a telerecorder, are enhanced by pertinent schematics
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