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I kick myself for not linking to the article but I added it above on an edit when I was in a hurry. I found it while looking for something unrelated but I don't think it was a regular amp builder. IIRC it was part of an article about amps and filters. It was not so much an ad for amps but was on an online retail site.

As for the not grounding the filter case, it is grounded via the coax cable shield however a direct separate ground is always a good idea for all pieces of gear.

Found the site. Thank God for not clearing my history.

1500W Harmonic Absorbing Filter [LPF1500] - $150.00 : Broadcast Concepts, The Art of FM Amplification

The "reacting" that is mentioned is most often due to changes in output impedance driving into the load either with or without the inline filter and not due to reflected harmonics. How many class C amps have you seen that were upset by adding an LPF to the output other than reducing the apparent power output?

<blockquote data-quote="Captain Kilowatt" data-source="post: 263162" data-attributes="member: 39">I kick myself for not linking to the article but I added it above on an edit when I was in a hurry. I found it while looking for something unrelated but I don&#039;t think it was a regular amp builder. IIRC it was part of an article about amps and filters. It was not so much an ad for amps but was on an online retail site.As for the not grounding the filter case, it is grounded via the coax cable shield however a direct separate ground is always a good idea for all pieces of gear.Found the site. Thank God for not clearing my history.&nbsp; <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":thumbup1:" title="Thumbs Up&nbsp; &nbsp; :thumbup1:"&nbsp; data-smilie="27"data-shortname=":thumbup1:" /><a href="http://www.broadcastconcepts.com/index.php?main_page=product_info&amp;products_id=68" target="_blank">1500W Harmonic Absorbing Filter [LPF1500] - $150.00 : Broadcast Concepts, The Art of FM Amplification</a>The &quot;reacting&quot; that is mentioned is most often due to changes in output impedance driving into the load either with or without the inline filter and not due to reflected harmonics. How many class C amps have you seen that were upset by adding an LPF to the output other than reducing the apparent power output?</blockquote>

[QUOTE="Captain Kilowatt, post: 263162, member: 39"] I kick myself for not linking to the article but I added it above on an edit when I was in a hurry. I found it while looking for something unrelated but I don't think it was a regular amp builder. IIRC it was part of an article about amps and filters. It was not so much an ad for amps but was on an online retail site. As for the not grounding the filter case, it is grounded via the coax cable shield however a direct separate ground is always a good idea for all pieces of gear. Found the site. Thank God for not clearing my history. :thumbup1: [url=http://www.broadcastconcepts.com/index.php?main_page=product_info&products_id=68]1500W Harmonic Absorbing Filter [LPF1500] - $150.00 : Broadcast Concepts, The Art of FM Amplification[/url] The "reacting" that is mentioned is most often due to changes in output impedance driving into the load either with or without the inline filter and not due to reflected harmonics. How many class C amps have you seen that were upset by adding an LPF to the output other than reducing the [I]apparent[/I] power output? [/QUOTE]

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