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[TenTec] OMNI-6 Tuning Knob Mod.

To: <tentec@contesting.com>
Subject: [TenTec] OMNI-6 Tuning Knob Mod.
From: royanjoy@ncn.net (Roy Koeppe)
Date: Sun, 17 Jan 1999 14:26:31 -0600
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Hi All,

In case anyone else is disenchanted with the general "feel" of the main =
tuning knob, I did lots of experimenting to improve it. Had great =
success. This remedy also works exactly the same on the uneven drag on =
the TS-950SD knob.

The OMNI-6 adjustable drag mechanism is rather mickey-mouse in my =
opinion. It can produce an uneven amount of drag during one revolution. =
This annoyed me to no end. (It was  worse on my "spare" rig: TS-950). It =
also would produce a slight screechy noise from time to time, even =
though I spread teflon lube on the rubbing plate behind the felt-padded =
bronze arms.=20

So, I played "operation" and performed the following "final solution:"

1...take knob off and take the bronze arms off.

2...bend bronze arms backward from the way they were.  Now, when you =
re-install the screws, they will apply tension to the skirt, locking it =
permanently in place.

3...apply a coating of rubber cement to the inside, back of the knob. =
(If you use the type of rubber cement such as is intended for gluing =
paper with, it can be removed by rubbing it with your finger, in case =
you should chicken out from the project).

4...while cement is wet, press a layer of cotton, from a pill bottle, to =
the cement. You can remove some of the cotton a little at a time to =
adjust distance from the skirt to panel after the cement dries, so a lot =
of cotton is OK for now.

5...apply small amount of teflon lube (Radio Shack precision lube pen) =
to the plastic friction rubbing surface on panel behind the knob. =
Re-install the knob.

6...the drag adjustment is now accomplished by adjusting the distance =
from knob to panel. Coarse adjustment for final distance is made by =
removing some cotton.

7... Wow! The tuning knob now feels like silken velvet. Just perfect, =
and it has  an even amount of drag all the way around a revolution. I =
prefer mine with very, very light drag.

73,   Roy       K6XK

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3612.1700"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>Hi All,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>In case anyone else is disenchanted =
with the=20
general &quot;feel&quot; of the main tuning knob, I did lots of =
experimenting to=20
improve it. Had great success. This remedy also works exactly the same =
on the=20
uneven drag on the TS-950SD knob.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>The OMNI-6 adjustable drag mechanism =
is rather=20
mickey-mouse in my opinion. It can produce an uneven amount of drag =
during one=20
revolution. This annoyed me to no end. (It was&nbsp; worse on my=20
&quot;spare&quot; rig: TS-950). It also would produce a slight screechy =
noise=20
from time to time, even though I spread teflon lube on the rubbing plate =
behind=20
the felt-padded bronze arms. </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>So, I played &quot;operation&quot; =
and performed=20
the following &quot;final solution:&quot;</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>1...take knob off and take the =
bronze arms=20
off.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>2...bend bronze arms backward from =
the way they=20
were.&nbsp; Now, when you re-install the screws, they will apply tension =
to the=20
skirt, locking it permanently in place.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>3...apply a coating of rubber cement =
to the=20
inside, back of the knob. (If you use the type of rubber cement such as =
is=20
intended for gluing paper with, it can be removed by rubbing it with =
your=20
finger, in case you should chicken out from the project).</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>4...while cement is wet, press a =
layer of=20
cotton, from a pill bottle, to the cement. You can remove some of the =
cotton a=20
little at a time to adjust distance from the skirt to panel after the =
cement=20
dries, so a lot of cotton is OK for now.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>5...apply small amount of teflon =
lube (Radio=20
Shack precision lube pen) to the plastic friction rubbing surface on =
panel=20
behind the knob. Re-install the knob.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>6...the drag adjustment is now accomplished by =
adjusting the=20
distance from knob to panel. Coarse adjustment for final distance is =
made by=20
removing some cotton.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>7... Wow! The tuning knob now feels like silken =
velvet. Just=20
perfect, and it has&nbsp; an even amount of drag all the way around a=20
revolution. I prefer mine with very, very light drag.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>73,&nbsp;&nbsp; =
Roy&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
K6XK</FONT></DIV></BODY></HTML>

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