[Hallicrafters] More SX-100 Help Needed

[David C. Hallam]

I have solved my problem of pivot/rotate the Hallicrafters emblem to 
access the mechanical adjustment screw.  Some one in the past evidently 
got frustrated with trying to move the emblem and got out the big 
hammer.  They broke the emblem off its pivot and then glued it back on.  
I did slip an Xacto knife blade under the emblem and gently worked it 
around the circumference.  The emblem came off and reveled the glue 
underneath.  Mechanical zero is now established.  I only have to figure 
out how to put the emblem back on without repeating the glue problem.

When this came up I already was not in a good mood.  I had turned on my 
HP606B signal generator and 8708A synchronizer to start the alignment on 
the SX-100.  I couldn't get phase lock on the 8708A so it would 
stabilize the 606B.  After going through the problem for an hour or 
more, I was ready the pull the covers and start trouble shooting the 
8708A.  Before I did that I checked the two RG-58 jumper cables I had 
recently purchased and found a short in one or both BNC connectors at 
the ends of both cables.  Trusting that luck was on my side, I cut a 
connect off and checked it for a short.  The short was in the other 
connector.  So, I had to put a new connector on both ends.  Probability 
came through for me on the second cable and I cut the shorted one off.  
That cable needed only one new connector.

Anyway, the S meter is zeroed and the 606B is locked at 50.75 KHz. I am 
ready to start the alignment.

David
KW4DH


On 6/7/2013 1:47 PM, rbethman wrote:
> David,
>
> Please re-read paragraph 6-5 of the SX-100 Mk2 Hallicrafters manual.
>
> While indeed it DOES say pivot, it *ALSO* says *Rotate*.
>
> I'd give it a try with an Exacto blade.  *Attempt* to *GENTLY lift the 
> bottom of the emblem.
>
> ---> Patience is a *MUST*!
>
> Age and/or crud may well have it "stuck" an being a royal PIA! (Don't 
> ask!)
>
> It will eventually do just as it is supposed to do.
>
> If all else fails - WALK AWAY for awhile!  Then come back to it.
>
> We *ALL* get very engrossed in what we are doing, and don't always 
> S-L-O-W DOWN when a glitch comes along.
>
> Lord only knows how many times *I* have had that hard focus on a project.
>
> You'll get it, but it will require taking a break and leave it alone.  
> You may need to take a day away.
>
> *IF* the Exacto blade won't get under it, try a doctor with a 
> disposable scalpel.
>
> Keep at it, with breaks as needed!
>
> Bob - N0DGN
>
>
> On 6/7/2013 1:22 PM, David C. Hallam wrote:
>> I am trying to adjust the S meter.  The manual says the meter 
>> mechanical adjustment is under the Hallicrafters emblem on the face 
>> of the meter and it is pivoted at the top so it will swing to the 
>> side.  Not very likely.  What nondestructive methods have others used 
>> to get the emblem to move?  I've tried Windex, a couple of drops of 
>> WD-40, a little bit of contact cleaner, and so on with no success 
>> including tapping VERY lightly on the side of the emblem.
>>
>> David
>> KW4DH
>>
>
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