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	Comments on: some recent pieces	</title>
	<atom:link href="https://www.preservationsound.com/some-recent-pieces/feed/" rel="self" type="application/rss+xml" />
	<link>https://www.preservationsound.com/some-recent-pieces/</link>
	<description>information and ideas about audio history</description>
	<lastBuildDate>Mon, 02 Oct 2023 06:44:50 +0000</lastBuildDate>
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		<title>
		By: Chris McColm		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-634255</link>

		<dc:creator><![CDATA[Chris McColm]]></dc:creator>
		<pubDate>Mon, 02 Oct 2023 06:44:50 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-634255</guid>

					<description><![CDATA[I built a portable tube guitar amp ,yes battery powered!  3.5 watt . nice and clear years ago . Always wanted one. Built a stereo amp based on same design but AC powered. Super clear , clearer with the dc power though .]]></description>
			<content:encoded><![CDATA[<p>I built a portable tube guitar amp ,yes battery powered!  3.5 watt . nice and clear years ago . Always wanted one. Built a stereo amp based on same design but AC powered. Super clear , clearer with the dc power though .</p>
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		<title>
		By: Peter Simmons		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-600157</link>

		<dc:creator><![CDATA[Peter Simmons]]></dc:creator>
		<pubDate>Sun, 31 May 2020 22:42:46 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-600157</guid>

					<description><![CDATA[Just came across your page after a web search for 6V6 amps. I, too am of the (very strong) opinion that the absolute best-ever sounding audio amp is one with a 12AX7 preamp, and 6V6 output. END OF STORY!!!]]></description>
			<content:encoded><![CDATA[<p>Just came across your page after a web search for 6V6 amps. I, too am of the (very strong) opinion that the absolute best-ever sounding audio amp is one with a 12AX7 preamp, and 6V6 output. END OF STORY!!!</p>
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		<title>
		By: Brian Brooks		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-380565</link>

		<dc:creator><![CDATA[Brian Brooks]]></dc:creator>
		<pubDate>Sun, 04 Dec 2016 01:58:28 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-380565</guid>

					<description><![CDATA[Do you sell just the internals?  I already have the box.]]></description>
			<content:encoded><![CDATA[<p>Do you sell just the internals?  I already have the box.</p>
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		<title>
		By: chris		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-26555</link>

		<dc:creator><![CDATA[chris]]></dc:creator>
		<pubDate>Tue, 31 Jul 2012 00:35:02 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-26555</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://www.preservationsound.com/some-recent-pieces/#comment-26050&quot;&gt;Gary&lt;/a&gt;.

Hi Gary.  Care to send me a link?  I can&#039;t find such an item on their website.  c.]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://www.preservationsound.com/some-recent-pieces/#comment-26050">Gary</a>.</p>
<p>Hi Gary.  Care to send me a link?  I can&#8217;t find such an item on their website.  c.</p>
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		<title>
		By: Gary		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-26050</link>

		<dc:creator><![CDATA[Gary]]></dc:creator>
		<pubDate>Fri, 27 Jul 2012 02:15:14 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-26050</guid>

					<description><![CDATA[It&#039;s silly to use a tube rectifier in a Class A single ended amp. They don&#039;t modulate the power supply, so there is no sonic effect. 

 You can use two common flat pack 6/12-120/240 four winding transformers instead of a purpose built power transformer by wiring them back to back, if you don&#039;t need a 5 volt rectifier winding.  Gateway in St. Louis has these for about a buck and a half apiece.]]></description>
			<content:encoded><![CDATA[<p>It&#8217;s silly to use a tube rectifier in a Class A single ended amp. They don&#8217;t modulate the power supply, so there is no sonic effect. </p>
<p> You can use two common flat pack 6/12-120/240 four winding transformers instead of a purpose built power transformer by wiring them back to back, if you don&#8217;t need a 5 volt rectifier winding.  Gateway in St. Louis has these for about a buck and a half apiece.</p>
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		<title>
		By: Add Vibrato (?) To Any Tube Amp! (1962) &#124; Preservation Sound		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-26000</link>

		<dc:creator><![CDATA[Add Vibrato (?) To Any Tube Amp! (1962) &#124; Preservation Sound]]></dc:creator>
		<pubDate>Thu, 26 Jul 2012 10:48:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-26000</guid>

					<description><![CDATA[[...] resistor with a 2M pot PLUS a fixed 470K resistor in series. Def gonna try adding this to the next Recycled Champ that I turn out.   This entry was posted in Technical and tagged guitar equipmemt, schematics. [...]]]></description>
			<content:encoded><![CDATA[<p>[&#8230;] resistor with a 2M pot PLUS a fixed 470K resistor in series. Def gonna try adding this to the next Recycled Champ that I turn out.   This entry was posted in Technical and tagged guitar equipmemt, schematics. [&#8230;]</p>
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		<title>
		By: chris		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-427</link>

		<dc:creator><![CDATA[chris]]></dc:creator>
		<pubDate>Wed, 05 Jan 2011 01:24:20 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-427</guid>

					<description><![CDATA[In reply to &lt;a href=&quot;https://www.preservationsound.com/some-recent-pieces/#comment-426&quot;&gt;Jerry Bass&lt;/a&gt;.

hi jerry.  i actually don&#039;t have photos of the circuits (there are no circuit boards, btw - it&#039;s all point-to-point wiring with a few terminal strips thrown in), and all of these have sold, so i can&#039;t photo them for you.  You can google &#039;fender champ layout&#039; to see how leo did it - this is a good place to start -but don&#039;t get too hung up on copying his layout exactly.  just remember these basic tips:  *keep all leads as short as possible.  *put the input stage as far away from the power transformer as you can.  *keep the heater wires twisted and away from the audio path.  Now, i also recommend using a 10gauge copper ground &#039;buss&#039; wire which only attached to the chassis at the input jack, but Leo did not do this and his amps all sound great so....]]></description>
			<content:encoded><![CDATA[<p>In reply to <a href="https://www.preservationsound.com/some-recent-pieces/#comment-426">Jerry Bass</a>.</p>
<p>hi jerry.  i actually don&#8217;t have photos of the circuits (there are no circuit boards, btw &#8211; it&#8217;s all point-to-point wiring with a few terminal strips thrown in), and all of these have sold, so i can&#8217;t photo them for you.  You can google &#8216;fender champ layout&#8217; to see how leo did it &#8211; this is a good place to start -but don&#8217;t get too hung up on copying his layout exactly.  just remember these basic tips:  *keep all leads as short as possible.  *put the input stage as far away from the power transformer as you can.  *keep the heater wires twisted and away from the audio path.  Now, i also recommend using a 10gauge copper ground &#8216;buss&#8217; wire which only attached to the chassis at the input jack, but Leo did not do this and his amps all sound great so&#8230;.</p>
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		<item>
		<title>
		By: Jerry Bass		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-426</link>

		<dc:creator><![CDATA[Jerry Bass]]></dc:creator>
		<pubDate>Wed, 05 Jan 2011 01:08:44 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-426</guid>

					<description><![CDATA[Great job. I&#039;m in the process of building a Champ right now. Could you post or send some pictures of the circuit board? That&#039;s my concern right now - and I&#039;d like to have something to model after. 
Thanks - Jerry]]></description>
			<content:encoded><![CDATA[<p>Great job. I&#8217;m in the process of building a Champ right now. Could you post or send some pictures of the circuit board? That&#8217;s my concern right now &#8211; and I&#8217;d like to have something to model after.<br />
Thanks &#8211; Jerry</p>
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		<item>
		<title>
		By: nat		</title>
		<link>https://www.preservationsound.com/some-recent-pieces/#comment-11</link>

		<dc:creator><![CDATA[nat]]></dc:creator>
		<pubDate>Tue, 05 Oct 2010 19:56:13 +0000</pubDate>
		<guid isPermaLink="false">http://www.preservationsound.com/?p=675#comment-11</guid>

					<description><![CDATA[those are some handsome, handsome beasts]]></description>
			<content:encoded><![CDATA[<p>those are some handsome, handsome beasts</p>
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