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        <title>The PWM Amplifier Circuit? Looks easy enough.</title>
        <description> [www.circuits-diy.com]    Hmmmmmmmmmmm... 700kHz from their example? Perfect, to boost like a 100mW for an AM Carrier-Current setup. (FWR by Boomer to me.)</description>
        <link>http://www.frn.net/vines/read.php?9,11339,11339#msg-11339</link>
        <lastBuildDate>Mon, 12 Oct 2026 14:26:29 -0400</lastBuildDate>
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            <guid>http://www.frn.net/vines/read.php?9,11339,11355#msg-11355</guid>
            <title>Re: The PWM Amplifier Circuit? Looks easy enough.</title>
            <link>http://www.frn.net/vines/read.php?9,11339,11355#msg-11355</link>
            <description><![CDATA[ It is an audio amp mainly, converting the 700 khz carrier into audio in the end, but you could probably modify it to transmit on 700 khz or other low band frequency, if you crystal locked it with an oscillator, and replaced the audio low pass filter on the output with a RF low pass filter.]]></description>
            <dc:creator>Radio Animal</dc:creator>
            <category>The Workshop</category>
            <pubDate>Mon, 12 Jan 2026 21:22:34 -0500</pubDate>
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            <guid>http://www.frn.net/vines/read.php?9,11339,11339#msg-11339</guid>
            <title>The PWM Amplifier Circuit? Looks easy enough.</title>
            <link>http://www.frn.net/vines/read.php?9,11339,11339#msg-11339</link>
            <description><![CDATA[ [<a href="https://www.circuits-diy.com/pwm-amplifier-circuit-ca3130-cd40106/"  rel="nofollow">www.circuits-diy.com</a>]    Hmmmmmmmmmmm... 700kHz from their example? Perfect, to boost like a 100mW for an AM Carrier-Current setup. (FWR by Boomer to me.)]]></description>
            <dc:creator>ThaDood</dc:creator>
            <category>The Workshop</category>
            <pubDate>Sat, 20 Dec 2025 12:39:06 -0500</pubDate>
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