<div dir="ltr"><div dir="ltr"><div dir="ltr"><div>If you find yourself with spare time in San Francisco here are some worthwhile radio related side trips:</div><div dir="ltr"><a href="http://www.radiomarine.org/">http://www.radiomarine.org/</a><br></div><div dir="ltr"><a href="https://www.californiahistoricalradio.com/">https://www.californiahistoricalradio.com/</a><br></div><div dir="ltr"><br></div><div>Rectifier at KPH:</div><div><div><img src="cid:ii_jn3uatle0" alt="image.png" width="562" height="466"><br></div></div><div><br></div><div>73 Martin W6MRR</div></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Oct 10, 2018 at 4:52 PM Richard O'Neill <<a href="mailto:richardoneill@earthlink.net">richardoneill@earthlink.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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From: <a class="m_9126845984401571222moz-txt-link-freetext" href="https://groups.yahoo.com/neo/groups/SparkGapCollectors/info" target="_blank">https://groups.yahoo.com/neo/groups/SparkGapCollectors/info</a><br>
<br>
<h2 style="float:left;padding:0px;margin:0px 0px 0px 10px;float:left;color:#222222;font-weight:bold;line-height:20px;font-family:arial,helvetica,clean,sans-serif;font-size:16px;font-style:normal;font-variant:normal;text-decoration:none"><a style="text-decoration:none" href="https://groups.yahoo.com/neo/groups/SparkGapCollectors/conversations/topics/418;_ylc=X3oDMTJxYzQxNWRtBF9TAzk3MzU5NzE1BGdycElkAzg3MDIyNDQxBGdycHNwSWQDMTcwNTU3Nzg5OQRtc2dJZAM0MTgEc2VjA2Rtc2cEc2xrA3Ztc2cEc3RpbWUDMTUzOTE3NTAwMA--" name="m_9126845984401571222_1" target="_blank"><span style="color:#3353f3"> [AWA] Web Site Put Up by
CHRS with Great Historic Material </span> </a> </h2>
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<h4 style="float:left;margin-left:40px;font-family:arial,helvetica,clean,sans-serif;color:#000000;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;text-decoration:none;margin:0px"> Tue
Oct 9, 2018 10:45 am (PDT) . Posted by: </h4>
<h3 style="float:left;font-family:arial,helvetica,clean,sans-serif;color:#3353f3;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;text-decoration:none;margin:0px 0px 0px 1px;padding:0px"> <a style="text-decoration:none" href="mailto:LDighera@att.net?subject=Re%3A%20%5BAWA%5D%20Web%20Site%20Put%20Up%20by%20CHRS%20with%20Great%20Historic%20Material" target="_blank">
<span style="color:#3353f3"> "Larry Dighera" ldighera </span>
</a> </h3>
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<div style="float:left;margin-top:22px;margin-bottom:6px;margin-left:40px;font-family:arial,helvetica,clean,sans-serif;color:#333333;font-size:13px;font-style:normal;font-variant:normal;font-weight:normal;text-decoration:none;line-height:19px"> <br>
Many thanks for the heads-up. <br>
<br>
I found EARLY AMATEUR STATIONS when Spark Was King:<br>
<a class="m_9126845984401571222moz-txt-link-freetext" href="http://www.sowp.org/early-amateur-stations/" target="_blank">http://www.sowp.org/early-amateur-stations/</a> of particular
interest.<br>
<br>
On Mon, 8 Oct 2018 14:22:57 -0700, "'Ludwell Sibley'<br>
<a class="m_9126845984401571222moz-txt-link-abbreviated" href="mailto:tubelore@jeffnet.org" target="_blank">tubelore@jeffnet.org</a> [antiquewirelessassociation]"<br>
<a class="m_9126845984401571222moz-txt-link-rfc2396E" href="mailto:antiquewirelessassociation@yahoogroups.com" target="_blank"><antiquewirelessassociation@yahoogroups.com></a> wrote:<br>
<br>
> The Californa Historical Radio Society has posted a mass of
Great Stuff<br>
>on <a class="m_9126845984401571222moz-txt-link-abbreviated" href="http://www.sowp.org" target="_blank">www.sowp.org</a> <a class="m_9126845984401571222moz-txt-link-rfc2396E" href="http://www.sowp.org/" target="_blank"><http://www.sowp.org/></a> - excellent
photos, texts, even a<br>
>couple of videos. This is material from the files of the
Society of<br>
>Wireless Pioneers, which was an association of about 500 radio
operators and<br>
>engineers for about 50 years, publishing the "Sparks Journal."
The SOWP<br>
>disbanded a few years ago and handed about 1000 pounds of
files in 40 boxes<br>
>to the CHRS. CHRS has lately been scanning masses of these
treasures and<br>
>posting them.<br>
><br>
> <br>
><br>
>Under the "Recent Additions" page, there's a mass of photos:<br>
><br>
> Two crisp portraits of Lee DeForest<br>
><br>
> Photos of Francis and Ignatius McCarthy, said to be
developers of a spark<br>
>radiophone transmitter (more below)<br>
><br>
> Arc transmitter of ca. 5 kW size at Mare Island Naval
Station, 1919<br>
><br>
> Bill Breniman and Richard Johnstone, founders of SOWP.
Breniman devoted<br>
>his elder life to editorship.<br>
><br>
> A shipwreck on the coast of China (multiple images)<br>
><br>
> United Wireless station at Leadville, CO ( ! ), 1905<br>
><br>
> Pacific Wireless station at Avalon on Catalina Island, 1903<br>
><br>
> Pacific Wireless station on Mt. Tamalpais, CA., 1906<br>
><br>
> Pan Am "Philippines Clipper" aircraft, 1937 (multiple images)<br>
><br>
> Civil Aviation Administration station KSF, 1945: Six
operating positions<br>
>with Hammarlund Super Pro receivers, 14 operators depicted<br>
><br>
> CAA station at Everglades, FL, ca. 1945<br>
><br>
> KFRC broadcast control room, 1925<br>
><br>
> Cutting & Washington 4A spark transmitter<br>
><br>
>The above is just a sampling: there's lots more.<br>
><br>
> <br>
><br>
>Under the "Cartoons & Schematics" page, there's a drawing
of the McCarthy<br>
>radiophone transmitter of 1906 (which I suspect never actually
sent audio,<br>
>just buzzes and snaps, like the Father Joseph Murgas 'phone
attempt at<br>
>Scranton about the same time).<br>
><br>
> <br>
><br>
>Under the De Forest photo album, there's a batch of photos of
their<br>
>equipment, some of which may not have been commercialized<br>
><br>
> One-kW quenched-gap transmitter<br>
><br>
> One-Spherical-Audion jeweler's time-signal
receiver. (a jeweler, to set<br>
>his master clock, could get leased time signals from Western
Union, or could<br>
>get Navy time signals sent over NAA. GE made a crystal time
set ("OTB,"<br>
>Dec. 1993) and Chambers made another one-Audion receiver
("Radio Age," Aug.<br>
>1997)<br>
><br>
> "Audiophone" one-Spherical amplifier<br>
><br>
> "CCF" one-Spherical tuner and detector<br>
><br>
> "DCQ" arc-type transmitter panel<br>
><br>
> Numerous other receiving units with 1, 2, or 3 Sphericals<br>
><br>
> The familiar RJ5 Audion control unit<br>
><br>
> RJ wavemeter<br>
><br>
>De Forest equipment catalogs of this vintage are either
super-rare or<br>
>nonexistent.<br>
><br>
> <br>
><br>
>There're a group of draft history writeups by Henry
Dickow, not all of them<br>
>finished or faultless, but interesting and readable material.<br>
><br>
> <br>
><br>
>There're a couple of videos, including a one-hour visit
with Don Wallace,<br>
>W6AM, the legendary DXer who owned 120 acres (ga$p !) on the
Palos Verdes<br>
>Peninsula.<br>
><br>
> <br>
><br>
>Not my project, but this is a continuing effort making
remarkable historic<br>
>material available. It's worth checking into.<br>
><br>
> <br>
><br>
>Ludwell Sibley</div>
</div>
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</blockquote></div>