Horace G. Martin
Part 1 : The Telegrapher
Part 2 : The Phillips System and the Autoplex
Part 3 : A Vibroplex in Every Telegraph Office
Centennial of the Martin Vibroplex
An article commemorating the 100th anniversary
of the commercial introduction of the Vibroplex.
New The Forgotten Vibroplex Patent
The story behind Martin's patent, 1,042,457.
Only 100 examples of this key were built.
The Origin of the Word "Bug"
The technical and legal history of the name given to semi-automatic transmitters.
How to Adjust a Semi-Automatic Transmitter
Instructions published by the Western Union Telegraph Co., 1915.
Versions of the Horace G. Martin articles were originally published
in the quarterly journal of The Antique Wireless Association.
( A nonprofit historical society )
Part One: The Telegrapher, November 2002, The OTB, Vol.43 / #4.
Part Two: The Phillips System and the Autoplex, February 2003, The OTB, Vol.44 / #1.
Part Three: A Vibroplex in Every Telegraph Office, May 2003, The OTB, Vol.44 / #2.
Centennial of the Martin Vibroplex, April 2005, The AWA Journal, Vol.46 / #2.
The Forgotten Vibroplex Patent, May 2004, The OTB, Vol.45 / #2.
Copyright (c) by John Casale - W2NI