HOWTO build a home phone-exchange
Phil sez, "I sent my Dad your HOWTO on building an intercom with an old telephone because it reminded me of something he built when I was a kid. He said: 'Mine was much posher! I made a miniature telephone exchange so that you could dial a specific extension which would then "ring", just like a "real" phone. To cap it all I had antique phones which looked good. The design was from February 1972 Practical Wireless.'" Link (Thanks, Phil!)Share this post
Cory Doctorow
Upcoming appearances
* Feb 9, 2012, DeKalb, IL: Day of Doctorow, NIU
* Feb 10-12, 2012, Chicago, IL: Capricon 32
* Feb 13, 2012, Arlington, TX: UT Arlington College of Engineering Distinguished Speaker Series
* Feb 16, 2012, Victoria, BC: 13th Annual Privacy and Security Conference
Recent books:
* Context (essays)
* With a Little Help (short stories)
* For the Win (YA novel)
* Makers (adult novel)
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