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<DIV>Hi Rob</DIV>
<DIV> </DIV>
<DIV>A very thin penetrating oil or even parafin and some patience should work
but may take a while. The pot on my SB610 does have a small amount of sideways
as well as back and forward play in the rotatable shaft so there should be room
for the oil to wick into the gap.</DIV>
<DIV> </DIV>
<DIV>If you can get the control out of the 610 then try suspending the shaft end
in penetrating oil or soak a piece of tissue in the oil and wrap it around the
control shaft and leave for a while. Give it a twist now and then and it should
eventually clear.</DIV>
<DIV> </DIV>
<DIV>The problem will be more difficult if the blockage is caused by corrosion
instead of old dried grease.</DIV>
<DIV> </DIV>
<DIV><FONT lang=0 size=2 face=Arial FAMILY="SANSSERIF"
PTSIZE="10">73<BR></FONT><FONT lang=0 color=#0000ff size=4 face=Arial
FAMILY="SANSSERIF" PTSIZE="14"><I><BR>Bob</FONT><FONT lang=0 color=#000000
size=2 face=Arial FAMILY="SANSSERIF" PTSIZE="10"></I><BR>Bob F Burns G3OOU<BR>C
Eng, FIET, MSE<BR>G-QRP 6907<BR>Crystal Palace Radio & Electronics Club:
www.g3oou.co.uk<BR>Technical web site: <A
href="http://www.qsl.net/g3oou">www.qsl.net/g3oou</A><BR>@BobFBurns on Twitter:
http://twitter.com/BobFBurns
<DIV> </DIV>
<DIV>
<DIV>In a message dated 10/08/2014 07:07:00 GMT Standard Time,
heathkit@yahoogroups.com writes:</DIV>
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<P>I have a pot whose shaft got stuck 'rock solid' somehow after a few years
of<BR>non use - but at one time it worked smoothly (it's the ON/OFF switch +
pot<BR>on my SB-610).<BR><BR>Are there any standard solutions for
this?<BR><BR>Thanks,<BR>-- Rob Myers, VE3JQL<BR><BR></P></DIV><!--~-|**|PrettyHtmlStart|**|-~-->
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