[600MRG] TM1LY and TM100LY Lafayette Stations on the Air.

[D.J.J. Ring, Jr.]

Do you have Thorn Mays' book, "Wireless communication in the United States
: the early development of American radio operating companies."?

You - and others - would enjoy it, it was written by Thorn, W6VX and
prepared by Arthur Goodnow, W1DM and Robert Merriam, W1NTE of the  New
England Wireless & Steam Museum <https://newsm.org/>   in Rhode Island.
 They sell copies but their web site has no shopping cart.
https://newsm.org/shop/

Book

Wireless Communication in the United States
The Early Development of American Radio Operating Companies
*by Thorn L. Mayes*

[image: Thorn Mayes book cover]Thorn L. Mayes was an electrical engineer
who grew up in the time he wrote about. He knew wireless and many of the
people who developed it. The book is a factual account of alternators, arcs
and sparcs, and coherers, barretters and tikkers! It tells of great
engineering achievements. It describes unscrupulous stock promotions that
by chance yielded some technical breakthroughs.

This book covers the glory days of high powered wireless, three hundred
thousand watt spark transmitters, one million watt arc transmitters, and
the mighty Alexanderson alternators with antennas as long as nine
miles–systems that gave dependable world wide radio communication over
seventy years ago–as well as the business history of early radio.

The appendix includes fresh opinions from excerpts of unpublished letters
of pioneers, and early drawings of well designed, quenched gap spark
transmitters, which are far more than the blunderbuss static generators
that they have been taken for.

73
DR


On Fri, Dec 18, 2020 at 7:24 PM Bart Lee <kv6lee at gmail.com> wrote:

> DR, A photo at the bottom right shows the antenna for the megawatt arc at
> Bordeaux circa 1920+.  It looks like a radiating vertical lead system, a
> narrow "V" --  into the leading edge of a large rectangular capacity hat,
> like a Marconi "T" but spread out. So the towers look to be isolated from
> ground and so did not radiate. The direction of emission would be to the
> observer (and camera). For U.S. Mid-Atlantic (*e.g.*, Annapolis, MD), the
> direction would be East-NorthEast of Bordeaux (great-circle). This could be
> verified if there were a lay-out map available of the transmitter and
> antenna, but that's what it looks like in the small diagram. There had to
> have been a very large ground-screen under the antenna system.
>
> 73 de Bart, K6VK ##
> -- --
> Bart Lee
>
> Texts only to: 415 902 7168
>
> www.bartlee.com
>
> {KV6LEE(at)gmail(dot)com} ##
>
> <http://www.LawForHams.com>
>
>
>
> On Fri, Dec 18, 2020 at 3:39 PM D.J.J. Ring, Jr. <n1ea at arrl.net> wrote:
>
>> Hello Bart,
>>
>> You didn't ask this question but I'm answering it again.***
>>
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