[R-390] Is this unusual?

[Roger Ruszkowski]

John,

In 25 words or less, nope.

For a while in 74 - 75 we could not get the spline bolts through military stock.
A common replacement part was the Allen head bolts.

Over 60 plus years a lot of non stock things have been installed to effect a repair.

Common practice is to swap the odd parts into a gear clamp where it can be seen
for what it is, and then use the spline bolt from the gear clamp on the blind knob clamp
so you do not get blind sided when trying to get the knobs off.

Roger AI4NI





Hi...I am dropping the front panel on my 390A.  I am new at this, my first time 
on the panel, so a bit nervous :-)

I have read the TM and am following Chuck's ER DVD closely.  So I need to remove 
the mcs knob...easy, right?  Nope.  Couldn't figure it out, couldn't get the 
setscrew loostened.

As it turns out, I finally realized, after doning my OptiVisor, that the 
setscrew is NOT a Bristol...someone had substituted an allen screw.  Not only 
that, it was metric...2 mm.

Is this uncommon?

Cheers,
John
K5ENQ
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-----Original Message-----
From: John Saxon <johnbsaxon at yahoo.com>
To: r-390 <r-390 at mailman.qth.net>
Sent: Thu, Oct 11, 2012 8:19 pm
Subject: [R-390] Is this unusual?


Hi...I am dropping the front panel on my 390A.  I am new at this, my first time 
on the panel, so a bit nervous :-)

I have read the TM and am following Chuck's ER DVD closely.  So I need to remove 
the mcs knob...easy, right?  Nope.  Couldn't figure it out, couldn't get the 
setscrew loostened.

As it turns out, I finally realized, after doning my OptiVisor, that the 
setscrew is NOT a Bristol...someone had substituted an allen screw.  Not only 
that, it was metric...2 mm.

Is this uncommon?

Cheers,
John
K5ENQ
______________________________________________________________
R-390 mailing list
Home: http://mailman.qth.net/mailman/listinfo/r-390
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:R-390 at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html