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	<id>https://worldofdragon.org/index.php?action=history&amp;feed=atom&amp;title=Replacement_power_supply_unit</id>
	<title>Replacement power supply unit - Revision history</title>
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	<updated>2026-04-04T21:58:34Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.31.15</generator>
	<entry>
		<id>https://worldofdragon.org/index.php?title=Replacement_power_supply_unit&amp;diff=5684&amp;oldid=prev</id>
		<title>Jedie at 14:58, 5 August 2014</title>
		<link rel="alternate" type="text/html" href="https://worldofdragon.org/index.php?title=Replacement_power_supply_unit&amp;diff=5684&amp;oldid=prev"/>
		<updated>2014-08-05T14:58:13Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 14:58, 5 August 2014&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l16&quot; &gt;Line 16:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 16:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Dragon_power_supply_schematics.png]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Dragon_power_supply_schematics.png]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:DIY_Projects]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[[Category:Documentation]] [[Category:Hardware]] &lt;/ins&gt;[[Category:DIY_Projects]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jedie</name></author>
		
	</entry>
	<entry>
		<id>https://worldofdragon.org/index.php?title=Replacement_power_supply_unit&amp;diff=5387&amp;oldid=prev</id>
		<title>Alastair: Category:DIY_Projects</title>
		<link rel="alternate" type="text/html" href="https://worldofdragon.org/index.php?title=Replacement_power_supply_unit&amp;diff=5387&amp;oldid=prev"/>
		<updated>2014-06-23T20:51:10Z</updated>

		<summary type="html">&lt;p&gt;Category:DIY_Projects&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 20:51, 23 June 2014&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l15&quot; &gt;Line 15:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 15:&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Dragon_power_supply_schematics.png]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[File:Dragon_power_supply_schematics.png]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class=&#039;diff-marker&#039;&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:DIY_Projects]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Alastair</name></author>
		
	</entry>
	<entry>
		<id>https://worldofdragon.org/index.php?title=Replacement_power_supply_unit&amp;diff=4798&amp;oldid=prev</id>
		<title>Rolfmichelsen: Initial version</title>
		<link rel="alternate" type="text/html" href="https://worldofdragon.org/index.php?title=Replacement_power_supply_unit&amp;diff=4798&amp;oldid=prev"/>
		<updated>2013-12-08T11:44:06Z</updated>

		<summary type="html">&lt;p&gt;Initial version&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;It is relatively easy to build a replacement power supply for a Dragon 32 or 64 if the original stops working.  The external power supply is basically a transformer connected to a 9 pin D-sub connector.  The diagram shows how the transformer is wired to the 9 pin D-sub connector.  D-subs always have numbers printed on them so it is impossible to get the wiring wrong.&lt;br /&gt;
&lt;br /&gt;
The trick is to find a suitable transformer.  The colour codes specified in the diagram are for a transformer purchased from [http://elfa.se ELFA], a relatively big vendor of electronics components and equipment in Scandinavia.  The table below lists part numbers from the ELFA catalogue.&lt;br /&gt;
&lt;br /&gt;
{|&lt;br /&gt;
! Count !! Description                                      !! ELFA part number &lt;br /&gt;
|-&lt;br /&gt;
| 1     || Toroid transformer 55 VA, 8,5 VAC + 2 x 14,4 VAC || 56-109-10 &lt;br /&gt;
|-&lt;br /&gt;
| 1     || Female D-sub 9 way                               || 44-160-54 &lt;br /&gt;
|-&lt;br /&gt;
| 1     || D-sub plastic hood                               || 44-085-06 &lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
[[File:Dragon_power_supply_schematics.png]]&lt;/div&gt;</summary>
		<author><name>Rolfmichelsen</name></author>
		
	</entry>
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