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		<title><![CDATA[Golborne Vintage Radio - Test Gear]]></title>
		<link>https://golbornevintageradio.co.uk/forum/</link>
		<description><![CDATA[Golborne Vintage Radio - https://golbornevintageradio.co.uk/forum]]></description>
		<pubDate>Mon, 20 Apr 2026 02:38:35 +0000</pubDate>
		<generator>MyBB</generator>
		<item>
			<title><![CDATA[RB RF Probe.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3884</link>
			<pubDate>Wed, 27 Nov 2013 01:52:04 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3884</guid>
			<description><![CDATA[An RF Probe from Radio Bygones, June/July 2003, which can be used with their <a href="http://golbornevintageradio.co.uk/forum/attachment.php?aid=6527" target="_blank" rel="noopener" class="mycode_url"><span style="color: #0000CD;" class="mycode_color"><span style="text-decoration: underline;" class="mycode_u">wobbulator</span></span></a>.<br />
<br />
Kindly supplied by Yorkie.<br />
<br />
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<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=9464" target="_blank" title="">RB RF Probe.pdf</a> (Size: 4.69 MB / Downloads: 30)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[An RF Probe from Radio Bygones, June/July 2003, which can be used with their <a href="http://golbornevintageradio.co.uk/forum/attachment.php?aid=6527" target="_blank" rel="noopener" class="mycode_url"><span style="color: #0000CD;" class="mycode_color"><span style="text-decoration: underline;" class="mycode_u">wobbulator</span></span></a>.<br />
<br />
Kindly supplied by Yorkie.<br />
<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=9464" target="_blank" title="">RB RF Probe.pdf</a> (Size: 4.69 MB / Downloads: 30)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[RC Record Player Amplifier.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3840</link>
			<pubDate>Thu, 07 Nov 2013 16:18:52 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3840</guid>
			<description><![CDATA[A one-valve (ECL82) amplifier from Radio Constructor, August 1970.  Kindly supplied by Yorkie.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=9353" target="_blank" title="">RC Record Player Amp.pdf</a> (Size: 4.17 MB / Downloads: 17)
<!-- end: postbit_attachments_attachment --><br />
]]></description>
			<content:encoded><![CDATA[A one-valve (ECL82) amplifier from Radio Constructor, August 1970.  Kindly supplied by Yorkie.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=9353" target="_blank" title="">RC Record Player Amp.pdf</a> (Size: 4.17 MB / Downloads: 17)
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]]></content:encoded>
		</item>
		<item>
			<title><![CDATA["Take 20" Capacitance Bridge.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3539</link>
			<pubDate>Sun, 30 Jun 2013 14:43:42 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3539</guid>
			<description><![CDATA[From Practical Wireless:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8368" target="_blank" title="">Take 20 Capacitance Bridge.pdf</a> (Size: 642.74 KB / Downloads: 25)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[From Practical Wireless:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8368" target="_blank" title="">Take 20 Capacitance Bridge.pdf</a> (Size: 642.74 KB / Downloads: 25)
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		</item>
		<item>
			<title><![CDATA[PW Transistor Tester.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3407</link>
			<pubDate>Fri, 24 May 2013 10:24:56 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3407</guid>
			<description><![CDATA[From Practical Wireless, February 1988.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8028" target="_blank" title="">PW Transistor Tester.pdf</a> (Size: 611.02 KB / Downloads: 21)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[From Practical Wireless, February 1988.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8028" target="_blank" title="">PW Transistor Tester.pdf</a> (Size: 611.02 KB / Downloads: 21)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[EE Probe-Tracer.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3385</link>
			<pubDate>Wed, 15 May 2013 10:33:50 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3385</guid>
			<description><![CDATA[From Everyday Electronics December 1975 kindly supplied by Yorkie.<br />
<br />
Even if you already have something similar this is worth a look as it includes very good instructions for use.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7950" target="_blank" title="">Probe Tracer for fault-finding.pdf</a> (Size: 2.48 MB / Downloads: 22)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[From Everyday Electronics December 1975 kindly supplied by Yorkie.<br />
<br />
Even if you already have something similar this is worth a look as it includes very good instructions for use.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7950" target="_blank" title="">Probe Tracer for fault-finding.pdf</a> (Size: 2.48 MB / Downloads: 22)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[PW MOSFET Voltmeter.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3342</link>
			<pubDate>Fri, 03 May 2013 08:38:59 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3342</guid>
			<description><![CDATA[Kindly supplied by Yorkie from Practical Wireless, December 1986.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7858" target="_blank" title="">PW MOSFET Voltmeter.pdf</a> (Size: 1.63 MB / Downloads: 34)
<!-- end: postbit_attachments_attachment --><br />
<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7863" target="_blank" title="">MOSFET VM PCB.jpg</a> (Size: 13.94 KB / Downloads: 6)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[Kindly supplied by Yorkie from Practical Wireless, December 1986.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7858" target="_blank" title="">PW MOSFET Voltmeter.pdf</a> (Size: 1.63 MB / Downloads: 34)
<!-- end: postbit_attachments_attachment --><br />
<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/image.png" title="JPG Image" border="0" alt=".jpg" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7863" target="_blank" title="">MOSFET VM PCB.jpg</a> (Size: 13.94 KB / Downloads: 6)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Coil Coverage Test Unit.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=3254</link>
			<pubDate>Fri, 29 Mar 2013 20:17:07 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=3254</guid>
			<description><![CDATA[From Radio Constructor Magazine, July 1969.<br />
<br />
Originally located by Yorkie.<br />
<br />
<br /><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7596" target="_blank" title="">Coil Coverage Test Unit.pdf</a> (Size: 313.65 KB / Downloads: 21)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[From Radio Constructor Magazine, July 1969.<br />
<br />
Originally located by Yorkie.<br />
<br />
<br /><!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=7596" target="_blank" title="">Coil Coverage Test Unit.pdf</a> (Size: 313.65 KB / Downloads: 21)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[PW Test-Master.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=2909</link>
			<pubDate>Tue, 11 Dec 2012 20:01:06 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=2909</guid>
			<description><![CDATA[<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6719" target="_blank" title="">PW Testmaster.pdf</a> (Size: 8.16 MB / Downloads: 20)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6719" target="_blank" title="">PW Testmaster.pdf</a> (Size: 8.16 MB / Downloads: 20)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA["Take 20" Signal Injector/Tracer.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=2856</link>
			<pubDate>Tue, 04 Dec 2012 21:39:16 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=2856</guid>
			<description><![CDATA[<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6601" target="_blank" title="">Take20 Injector-Tracer.pdf</a> (Size: 249.92 KB / Downloads: 26)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6601" target="_blank" title="">Take20 Injector-Tracer.pdf</a> (Size: 249.92 KB / Downloads: 26)
<!-- end: postbit_attachments_attachment -->]]></content:encoded>
		</item>
		<item>
			<title><![CDATA[Wobbulators.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=2814</link>
			<pubDate>Wed, 28 Nov 2012 20:32:02 +0000</pubDate>
			<dc:creator><![CDATA[<a href="https://golbornevintageradio.co.uk/forum/member.php?action=profile&uid=57">Joe</a>]]></dc:creator>
			<guid isPermaLink="false">https://golbornevintageradio.co.uk/forum/showthread.php?tid=2814</guid>
			<description><![CDATA[A circuit provided by Skywave:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6523" target="_blank" title="">Wobbulator.pdf</a> (Size: 445.9 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
From Practical Wireless, November 1975, provided by Skywave:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6524" target="_blank" title="">PW Wobbulator.pdf</a> (Size: 737.15 KB / Downloads: 14)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
From Radio and Electronics Constructor, March 1976, provided by Alan Beckett:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6525" target="_blank" title="">REC Wobulator.PDF</a> (Size: 566.74 KB / Downloads: 17)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
From Radio Bygones, April/May 2003, provided by PWDrive and including notes by Yorkie:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6527" target="_blank" title="">RB Wobbulator.pdf</a> (Size: 515.65 KB / Downloads: 50)
<!-- end: postbit_attachments_attachment --><br />
<br />
Details of the RF Probe mentioned in the article can be seen here: <span style="color: #0000CD;" class="mycode_color"><span style="text-decoration: underline;" class="mycode_u"><a href="http://golbornevintageradio.co.uk/forum/showthread.php?tid=3884" target="_blank" rel="noopener" class="mycode_url">http://golbornevintageradio.co.uk/forum/...p?tid=3884</a></span></span><br />
<br />
<br />
"Take 20" Basic Wobbulator from Practical Wireless:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8367" target="_blank" title="">Take 20 Basic Wobbulator.pdf</a> (Size: 501.6 KB / Downloads: 5)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
"An Inexpensive Wobbulator" from Practical Wireless, April 1976.  It is based on an NE566 IC which are still (June 2013) available at reasonable prices from Far Eastern sellers on e-Bay.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8372" target="_blank" title="">PW Inexpensive Wobbulator.pdf</a> (Size: 3.38 MB / Downloads: 8)
<!-- end: postbit_attachments_attachment -->]]></description>
			<content:encoded><![CDATA[A circuit provided by Skywave:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6523" target="_blank" title="">Wobbulator.pdf</a> (Size: 445.9 KB / Downloads: 16)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
From Practical Wireless, November 1975, provided by Skywave:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6524" target="_blank" title="">PW Wobbulator.pdf</a> (Size: 737.15 KB / Downloads: 14)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
From Radio and Electronics Constructor, March 1976, provided by Alan Beckett:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6525" target="_blank" title="">REC Wobulator.PDF</a> (Size: 566.74 KB / Downloads: 17)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
From Radio Bygones, April/May 2003, provided by PWDrive and including notes by Yorkie:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=6527" target="_blank" title="">RB Wobbulator.pdf</a> (Size: 515.65 KB / Downloads: 50)
<!-- end: postbit_attachments_attachment --><br />
<br />
Details of the RF Probe mentioned in the article can be seen here: <span style="color: #0000CD;" class="mycode_color"><span style="text-decoration: underline;" class="mycode_u"><a href="http://golbornevintageradio.co.uk/forum/showthread.php?tid=3884" target="_blank" rel="noopener" class="mycode_url">http://golbornevintageradio.co.uk/forum/...p?tid=3884</a></span></span><br />
<br />
<br />
"Take 20" Basic Wobbulator from Practical Wireless:-<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
<img src="https://golbornevintageradio.co.uk/forum/images/attachtypes/pdf.png" title="Adobe Acrobat PDF" border="0" alt=".pdf" />
<!-- end: attachment_icon -->&nbsp;&nbsp;<a href="attachment.php?aid=8367" target="_blank" title="">Take 20 Basic Wobbulator.pdf</a> (Size: 501.6 KB / Downloads: 5)
<!-- end: postbit_attachments_attachment --><br />
<br />
<br />
"An Inexpensive Wobbulator" from Practical Wireless, April 1976.  It is based on an NE566 IC which are still (June 2013) available at reasonable prices from Far Eastern sellers on e-Bay.<br />
<!-- start: postbit_attachments_attachment -->
<br /><!-- start: attachment_icon -->
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			<title><![CDATA[High-Voltage Insulation Tester.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=2760</link>
			<pubDate>Sun, 25 Nov 2012 19:39:09 +0000</pubDate>
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			<title><![CDATA[Valve Testing Bridge.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=2758</link>
			<pubDate>Sun, 25 Nov 2012 18:36:09 +0000</pubDate>
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			<title><![CDATA[Wireless World Capacity and Resistance Bridge.]]></title>
			<link>https://golbornevintageradio.co.uk/forum/showthread.php?tid=2757</link>
			<pubDate>Sun, 25 Nov 2012 18:33:12 +0000</pubDate>
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