Found WNU 36 at coastalradio.org.uk . Seems to have been a commercial telegraph station in Slidell, LA and operating on 22431 kHz. My guess is the disc was a mechanical statio ID keyer.<div><div><br></div><div>73 de&nbsp;</div><div>Gene Smar AD3F&nbsp;<br><br><div id="ymail_android_signature">Sent from my Radio Shack TRS-80 model 100 laptop</div> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Fri, Aug 23, 2024 at 10:08 PM, Mark K3MSB</div><div>&lt;mark.k3msb@gmail.com&gt; wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> <div id="yiv5182667793"><div dir="ltr"><div>Might any of you know in what device this was used?</div><div><br></div><div><img src="cid:YKJweCaIBZSXtHCMl3Pv" yahoo_partid="1.2" alt="image.png" width="558" height="417" id="ymail_ctr_id_-298119-13"><br><br></div><div><img src="cid:NmHV5CZRmu4AUmpEstpB" yahoo_partid="1.3" alt="image.png" width="558" height="164" id="ymail_ctr_id_-61407-14"><br><br></div><div>73 Mark K3MSB<br></div><div><br></div></div>
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