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This is a great magazine issue!<div>At least three useful and interesting </div><div>articles.</div><div><br></div><div>And regarding crystal radios, I did finally</div><div>get my crystal radio to work. It is actually</div><div>a loose coupler that has a crystal detector</div><div>attached. I substituted a diode for the crystal.</div><div>It was touch and go, literally. Tomorrow I </div><div>hope to take it apart and clean up all contacts.</div><div>Then I will look for a selection of crystal types to</div><div>purchase. I want to make this one flameproof.</div><div>I am using antique headphones of a particular brand that</div><div>were known to be better than the rest.</div><div><br></div><div>Photo links to Flickr are below:</div><div><br><a href="https://flic.kr/p/4zRySi" target="_blank" class="enhancr2_D0684186-381A-435B-8D4A-A7454EF19411">Early Crystal Radio</a> </div><div><br><div><br></div><div id="enhancr2_D0684186-381A-435B-8D4A-A7454EF19411" class="yahoo-link-enhancr-card yahoo-link-enhancr-cardSize-medium yahoo-link-enhancr-cardType-yenhancr yahoo-link-enhancr-cardCategory-article ymail-preserve-class ymail-preserve-style" style="max-width:400px;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;" contenteditable="false" data-url="https://flic.kr/p/4zRySi" data-type="LINK_ENHANCR_ATTACHMENT_TYPE_INLINE" data-category="article" data-embed-url="" data-size="medium"> <a href="https://flic.kr/p/4zRySi" style="text-decoration:none !important; color: #000 !important;" class="yahoo-enhancr-cardlink" target="_blank" rel="noreferrer"> <table class="card-wrapper yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" style="max-width:400px;"> <tbody><tr> <td width="400"> <table class="card yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" width="100%" style="max-width:400px;"> <tbody><tr> <td class="card-primary-image-cell" style="background:#000 url('https://s.yimg.com/lo/api/res/1.2/I9VXzuqhZhbnc_xmZHzEJg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/2413/2352185725_0d3a5870a6_b.jpg.cf.jpg') no-repeat center center;background-size:cover;height:200px;position:relative;" background="https://s.yimg.com/lo/api/res/1.2/I9VXzuqhZhbnc_xmZHzEJg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/2413/2352185725_0d3a5870a6_b.jpg.cf.jpg" bgcolor="#000000" valign="top"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/I9VXzuqhZhbnc_xmZHzEJg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/2413/2352185725_0d3a5870a6_b.jpg.cf.jpg"/></v:rect><![endif]--> <table class="yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" valign="top" style="width:100%;"> <tbody><tr> <td style="background:transparent url('https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png') repeat left top;height:200px;" background="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png" bgcolor="transparent" valign="top"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png"/><v:textbox inset="0,0,20px,0"><![endif]--> <table class="yahoo-ignore-table" height="185" style="width:100%;height:185px;min-height:185px;"> <tbody><tr> <td class="card-richInfo2" style="text-align:left;text-align:left;padding:15px 0 0 15px;vertical-align:top;"> </td> <td class="card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top;"> <div class="card-share-container"></div> </td> </tr> </tbody></table> <!--[if gte mso 9]></v:textbox></v:rect><![endif]--> </td> </tr> </tbody></table> </td> </tr> <tr> <td> <table class="card-info yahoo-ignore-table" align="center" cellpadding="0" cellspacing="0" border="0" style="background:#fff;position:relative;z-index:2;width:95%;max-width:380px;border:1px solid #e0e4e9;border-bottom:3px solid #206dd7;margin-top:-40px;margin-left:auto;margin-right:auto;"> <tbody><tr> <td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;"> <img class="card-object-1 yahoo-ignore-inline-image ymail-preserve-class" src="https://s.yimg.com/nq/storm/assets/enhancrV2/23/logos/flickr.png" height="32" style="min-width:32px;border:1px solid #e0e4e9;margin-top:3px;"> </td> <td style="vertical-align:middle;padding:16px 12px;width:99%;"> <h2 class="card-title" style="font-size: 16px; line-height:19px; margin:0 0 4px 0;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;">Early Crystal Radio</h2> <p class="card-description" style="font-size:11px;line-height:15px;color:#999;">This crystal radio was probably made from a kit and I would date it as mid to late 1920s. The smaller coil slides in and out on the rails while the outer coil has a sliding tap. To the far right you can see the cats whisker and galena crystal. H</p> </td> <td style="text-align:right;padding:16px 12px 16px 0;"> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </a> </div><div><br></div><a href="https://flic.kr/p/CeZ14G" target="_blank" class="enhancr2_442CE3C4-5B02-449B-929E-D104090AFA99">Loose Coupler as Crystal Radio</a> <div><br></div><div id="enhancr2_442CE3C4-5B02-449B-929E-D104090AFA99" class="yahoo-link-enhancr-card yahoo-link-enhancr-cardSize-medium yahoo-link-enhancr-cardType-yenhancr yahoo-link-enhancr-cardCategory-article ymail-preserve-class ymail-preserve-style" style="max-width:400px;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;" contenteditable="false" data-url="https://flic.kr/p/CeZ14G" data-type="LINK_ENHANCR_ATTACHMENT_TYPE_INLINE" data-category="article" data-embed-url="" data-size="medium"> <a href="https://flic.kr/p/CeZ14G" style="text-decoration:none !important; color: #000 !important;" class="yahoo-enhancr-cardlink" target="_blank" rel="noreferrer"> <table class="card-wrapper yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" style="max-width:400px;"> <tbody><tr> <td width="400"> <table class="card yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" width="100%" style="max-width:400px;"> <tbody><tr> <td class="card-primary-image-cell" style="background:#000 url('https://s.yimg.com/lo/api/res/1.2/jSe9scinFc2HeTpUoZHnvg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/1704/23787079694_f065bc48fc_b.jpg.cf.jpg') no-repeat center center;background-size:cover;height:200px;position:relative;" background="https://s.yimg.com/lo/api/res/1.2/jSe9scinFc2HeTpUoZHnvg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/1704/23787079694_f065bc48fc_b.jpg.cf.jpg" bgcolor="#000000" valign="top"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/jSe9scinFc2HeTpUoZHnvg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/1704/23787079694_f065bc48fc_b.jpg.cf.jpg"/></v:rect><![endif]--> <table class="yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" valign="top" style="width:100%;"> <tbody><tr> <td style="background:transparent url('https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png') repeat left top;height:200px;" background="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png" bgcolor="transparent" valign="top"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png"/><v:textbox inset="0,0,20px,0"><![endif]--> <table class="yahoo-ignore-table" height="185" style="width:100%;height:185px;min-height:185px;"> <tbody><tr> <td class="card-richInfo2" style="text-align:left;text-align:left;padding:15px 0 0 15px;vertical-align:top;"> </td> <td class="card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top;"> <div class="card-share-container"></div> </td> </tr> </tbody></table> <!--[if gte mso 9]></v:textbox></v:rect><![endif]--> </td> </tr> </tbody></table> </td> </tr> <tr> <td> <table class="card-info yahoo-ignore-table" align="center" cellpadding="0" cellspacing="0" border="0" style="background:#fff;position:relative;z-index:2;width:95%;max-width:380px;border:1px solid #e0e4e9;border-bottom:3px solid #206dd7;margin-top:-40px;margin-left:auto;margin-right:auto;"> <tbody><tr> <td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;"> <img class="card-object-1 yahoo-ignore-inline-image ymail-preserve-class" src="https://s.yimg.com/nq/storm/assets/enhancrV2/23/logos/flickr.png" height="32" style="min-width:32px;border:1px solid #e0e4e9;margin-top:3px;"> </td> <td style="vertical-align:middle;padding:16px 12px;width:99%;"> <h2 class="card-title" style="font-size: 16px; line-height:19px; margin:0 0 4px 0;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;">Loose Coupler as Crystal Radio</h2> <p class="card-description" style="font-size:11px;line-height:15px;color:#999;">I am preparing for a presentation about radio that I will be giving to our local AACA car club. So, I had to get this one going again. It is a loose coupler with a crystal detector attached to one end (far right). The earphones are Baldwins. The wire</p> </td> <td style="text-align:right;padding:16px 12px 16px 0;"> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </a> </div><div><br></div><a href="https://flic.kr/p/CeZ14G" target="_blank" class="enhancr2_B719849E-5800-43F4-9C76-BBE6DD44C785">https://flic.kr/p/CeZ14G</a> <div><br></div><div><br></div><a href="https://flic.kr/p/2hYt98E" target="_blank" class="enhancr2_F946A39A-DC1C-4CA4-ACF5-51F9D97995B1">f-stop Experiment ; Radio and Photography</a> <div><br></div><div id="enhancr2_F946A39A-DC1C-4CA4-ACF5-51F9D97995B1" class="yahoo-link-enhancr-card yahoo-link-enhancr-cardSize-medium yahoo-link-enhancr-cardType-yenhancr yahoo-link-enhancr-cardCategory-article ymail-preserve-class ymail-preserve-style" style="max-width:400px;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;" contenteditable="false" data-url="https://flic.kr/p/2hYt98E" data-type="LINK_ENHANCR_ATTACHMENT_TYPE_INLINE" data-category="article" data-embed-url="" data-size="medium"> <a href="https://flic.kr/p/2hYt98E" style="text-decoration:none !important; color: #000 !important;" class="yahoo-enhancr-cardlink" target="_blank" rel="noreferrer"> <table class="card-wrapper yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" style="max-width:400px;"> <tbody><tr> <td width="400"> <table class="card yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" width="100%" style="max-width:400px;"> <tbody><tr> <td class="card-primary-image-cell" style="background:#000 url('https://s.yimg.com/lo/api/res/1.2/bZboxjP._yLcN2edK4wIqg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/65535/49209419988_4fe53636b1_b.jpg.cf.jpg') no-repeat center center;background-size:cover;height:200px;position:relative;" background="https://s.yimg.com/lo/api/res/1.2/bZboxjP._yLcN2edK4wIqg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/65535/49209419988_4fe53636b1_b.jpg.cf.jpg" bgcolor="#000000" valign="top"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/bZboxjP._yLcN2edK4wIqg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://live.staticflickr.com/65535/49209419988_4fe53636b1_b.jpg.cf.jpg"/></v:rect><![endif]--> <table class="yahoo-ignore-table" cellpadding="0" cellspacing="0" border="0" valign="top" style="width:100%;"> <tbody><tr> <td style="background:transparent url('https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png') repeat left top;height:200px;" background="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png" bgcolor="transparent" valign="top"> <!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:400px;height:218px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/nq/storm/assets/enhancrV2/12/overlay-tile.png"/><v:textbox inset="0,0,20px,0"><![endif]--> <table class="yahoo-ignore-table" height="185" style="width:100%;height:185px;min-height:185px;"> <tbody><tr> <td class="card-richInfo2" style="text-align:left;text-align:left;padding:15px 0 0 15px;vertical-align:top;"> </td> <td class="card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top;"> <div class="card-share-container"></div> </td> </tr> </tbody></table> <!--[if gte mso 9]></v:textbox></v:rect><![endif]--> </td> </tr> </tbody></table> </td> </tr> <tr> <td> <table class="card-info yahoo-ignore-table" align="center" cellpadding="0" cellspacing="0" border="0" style="background:#fff;position:relative;z-index:2;width:95%;max-width:380px;border:1px solid #e0e4e9;border-bottom:3px solid #206dd7;margin-top:-40px;margin-left:auto;margin-right:auto;"> <tbody><tr> <td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;"> <img class="card-object-1 yahoo-ignore-inline-image ymail-preserve-class" src="https://s.yimg.com/nq/storm/assets/enhancrV2/23/logos/flickr.png" height="32" style="min-width:32px;border:1px solid #e0e4e9;margin-top:3px;"> </td> <td style="vertical-align:middle;padding:16px 12px;width:99%;"> <h2 class="card-title" style="font-size: 16px; line-height:19px; margin:0 0 4px 0;font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;">f-stop Experiment ; Radio and Photography</h2> <p class="card-description" style="font-size:11px;line-height:15px;color:#999;">While awaiting delivery of a new camera I am testing out a few ideas with my old one (broken LCD screen). The item on top is a loose coupler modified into a crystal radio. Below is a Crosley TRF with regeneration, and to the left is a Kodak dark room</p> </td> <td style="text-align:right;padding:16px 12px 16px 0;"> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> </tr> </tbody></table> </a> </div><div><br></div><br><br><a href="https://overview.mail.yahoo.com/?.src=iOS">Sent from Yahoo Mail for iPad</a><br><br><p class="yahoo-quoted-begin" style="font-size: 15px; color: #715FFA; padding-top: 15px; margin-top: 0">On Sunday, July 31, 2022, 8:20 PM, Michael Thompson via Thursday <thursday@newsm.org> wrote:</p><blockquote class="iosymail"><div id="yiv0563831283"><div dir="ltr">This was just sent to me by one of the volunteers at the Computer Museum.<div>Take a look at page 18.</div><div>There is also an article on crystal radios on page 27.<br clear="all"><div><br></div>-- <br><div dir="ltr" class="yiv0563831283gmail_signature">Michael Thompson</div></div></div>
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