Source: www.youtube.com
HOW RADIO WORKS – 1943
<p><center><object width='100%' height='350'><param name="movie" value="https://www.youtube.com/v/jqGAneO79lY?fs=1&hl=fr_FR"/><param name="allowFullScreen" value="true"/><param name="allowscriptaccess" value="always"/><embed wmode="opaque" src="https://www.youtube.com/v/jqGAneO79lY?fs=1&hl=fr_FR" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width='100%' height='350'/></object></center>The theory and operation of early radio</p> <p>Source: <a target='_blank' href='https://www.youtube.com/watch?v=jqGAneO79lY'>www.youtube.com</a></p>
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