[Hallicrafters] SX-111 Questions

[Rodney Bunt]

Replace all the BB caps, they drift in value, I have had problems with the small ceramic pF value
caps too, they were noisey.

The caps on the wafer switch for bandwidth selection should also be replaced, and check their
value when replacing them, as well check the resistors on this switch. Makes a hell of a
difference on SSB when the filter is on frequency and on bandwidth.

Rodney
VK2KTZ


--- Bob Wilder <bwild at earthlink.net> wrote:
> Skip: can not answer your question BUT....wish you luck on the upgrade...need all of
> the hams we can get to use and keep our HF, VHF and UHF frequencies. Good luck and
> join the party.
> 
> Bob, AF2HD
> 
> 
> At 01:31 PM 9/17/2003 -0700, Waldo Magnuson wrote:
> 
> >Hi SX-111 owners,
> >    I recently got a SX-111 (s/n 1110-12 204020) which came with a manual (not original).  I
> have a couple of questions directed to you who might have a SX-111.
> >1) The manual shows C-69A,B,C on top of the chassis centered near the back - my 111 has a tube
> there (6BY6).  The C-69 on mine (an electroytic) is mounted under the chassis near the power
> transformer.  
> >The manual has 14 tubes - mine has 15 tubes.
> >2) The tube in question seems to be very microphonic - tapping the receiver anywhere and it
> rings but the 6BY6 seems to be the most microphonic.
> >3) The procedure for checking and adjusting the Notch Filter is not very explicit in the manual
> I have.
> >4) The crystal calibrator seems to stay on at times although I turn it off but this I need to
> check further before being certain.
> >Otherwise, when it's working properly, the receiver is very sensitivity and selective.  If any
> SX-111 owners have some thoughts on the above please share them.
> >   I am finding the path to CW operation is not a direct one - my code is almost there (well
> 90% at 5 wpm) and my General test samples close to averaging 90% so I guess I'm slowly getting
> there.
> >   Any finally, is the consensus to replace all black beauty caps regardless of how the set
> operates?
> >Thanks.
> >Skip Magnuson  KD7VRM
> >
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