The Elgin Service Bulletin on Receiving Time by Wireless
This is, I think, the fifth in a series of at least six service
bulletin that Elgin published between ca 1910 and ca 1915. I have
two different versions of this bulletin. The only difference that
I can see is that one lacks the "Arlington Receiving Set" diagram.
Like the rest of these early Elgin Service Bulletins, there isn't a
date on this one, but Thomas White of the
United States Early Radio History
website was able to narrow it down to 1915 +/- 2 years. The
Arglington station (NAA) started transmitting time signals in
early 1913 and in April 1917 the US entered WWI and banned
civilian use of radio. One other station mentioned in this
bulletin (WCC) was decommissioned during the war, so this document
must have been pre-WWI.
There are several webpages on the
United States Early Radio History
website that are closely related to watches:
Regulating 10,000 Clocks By Wireless (1913)
Wireless Time Service From Beloit College (1913)
Getting the Wireless on Board Train (1914)
Download a complete set of the above images in a printable form:
PDF file print quality: Poor (1.2M) Rough Draft (2.0M) Good (3.5M) Highest (13.0M)
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