[Hallicrafters] BFO on SX-16

[HallicrafterSX28 at aol.com]

As mentioned  by the previous commentators ALL paper caps need to be  
removed.In addition to that,the SX-16 (and SX-17) have couple of paper caps  
HIDDEN inside the BFO box or compartment(on which the BFO tube and coil)are  
sitting.To hit those will require dismantling the BFO box .What makes  it tough 
is a coax
running from the box soldered to the chassis.
Good luck !
Nick
 
 
In a message dated 11/1/2009 11:44:35 AM Pacific Standard Time,  
ballfamily23 at att.net writes:

I just  replaced the 'BFO Injector' pot on my SX-16, in hopes of repairing 
the  BFO.  When I turn the BFO switch on and crank up the pot, I do not hear 
 the oscillator, and the pot glows and smokes.  I thought perhaps the pot  
was bad, so with the help of George Frost (who sent me a replacement), today 
I  installed the replacement.  This time, when I carefully turned-on the  
BFO, and brought up the pot, again-no tone, and in addition, I heard a 
crackle  from the pot at about the 3/4 full position.  I quickly turned the  
control off, in hopes of not damaging the pot that George sent me.  Would  
anybody be able to give me a clue where I should look to trace the  problem.  I 
did change the BFO tube (6J7), no difference.  Just  wondering if anybody else 
has seen a similar problem and could share the  experience with a 
not-so-experienced SWL'r.

Thank you much, and thank  you again George.
Mike  
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