[Hallicrafters] SX-117 BFO Freq. Adjustment

[Duane Fischer, W8DBF]

Skip,

Both of these issues were addressed in depth several years ago. You might 
try doing a search via the HHI web site and see what turns up. The storage 
time used to be thirty months, but it has been increased to nearly sixty 
months, so I am told.

In any case, please print the solutions you get here to the list Skip. It 
would be great for all to have a chance to read it again. Thanks!


Duane Fischer, W8DBF/WPE8CXO
dfischer at usol.com
HHI: Halligan's Hallicrafters International
http://www.w9wze.net
HHRP: Historic Halligan Radio Project
hhrp.w9wze.net

----- Original Message ----- 
From: "Waldo Magnuson" <magnuson at mac.com>
To: <hallicrafters at mailman.qth.net>
Cc: "Waldo Magnuson" <magnuson at mac.com>
Sent: Sunday, December 30, 2007 9:18 PM
Subject: [Hallicrafters] SX-117 BFO Freq. Adjustment


>I use my SX-117 in slaved mode with my HT-44.  I have been having trouble 
>with frequency stability in transmitting so I am making calibration 
>adjustments to my SX-117.  In following the procedure for the BFO Frequency 
>Adjustment (Section 6-11) I find that after removing the BFO control knob 
>(step a.) and try turning the BFO slug (accessible through the center of 
>the control knob) I find that I cannot turn the slug independently of the 
>control knob shaft - as if the two are "frozen" together.  I am tempted to 
>try a little liquid wrench to try to free the two shafts - are there any 
>other suggestions?  Thanks.
>
> Regarding the HT-44, I replaced several tubes and then tried adjusting the 
> Bias Adjustment on the output tubes.  I can't get the 100 ma idling 
> current for the final tubes.  Any comments about this would also be 
> welcome.
>
> Thanks.
> 73,  Skip  W7WGM
>
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