[NJARC] Hallicrafters SX-111 Mk. 1

[Al Klase]

Scott,

Don't get too excited until you get the paper caps out of the set. Read 
both of these: 
http://www.skywaves.ar88.net/commrx/Maintenance/Receiver_Maintenance.html

Get the schematic from BAMA to verify the cap values. Like you say, the 
colors get funny with age.

Loose tube bases: Wind kite string tightly around the notch between the 
base and glass, and tie. This is a good place for a surgeons knot. Then, 
slather the string with old-fashioned glue like Duco cement or Ambroid. 
This "kink" comes from a radio service magazine from the '50's and works 
well.

Regards,
Al

Scott Roberts wrote:
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> Greetings!
> I'm sure many of you noticed my call last week looking
> for a Hallicrafters SX-111 receiver: John Ruccolo came
> through wonderfully on a spare Mk 1 he had awaiting...
> Thanks Again John! Just thought I'd pass along a
> progress report, see if I could drag in a few ideas...
>
>
> I started working with it Friday night, after getting
> home from the meeting- I am slowly learning how to
> find a signal, tweak a signal, and pull it in legibly,
> using the BFO, and balancing out the RF and Audio
> gains, as well as trimming up the antenna and
> narrowing the selectivity and adjusting the notch
> freq... However, despite having both the ANL and AVC
> on, I still get a good bit of "woosh" or "white noise"
> in the backround, which I am attributing to the
> original "bumblebee" type caps still being in place. 
>
> Currently, I am using my "Alzwhire*" antenna strung up
> across the inside of the attic, and then down at an
> angle from near the peak to near the front... It is an
> abominable amalgamation of a few different styles of
> antenna- basically about a 40 ft. wire, split at the
> mid point, with an additional run from the end of one
> side down following the slope of the roof for about 20
> additional feet, that side only... It was mainly
> intended to drag in some sort of radio signal... It
> seems to work moderately, as I am pulling in VOX from
> Texas, Mississippi, and Florida this afternoon. My
> shop test antenna is a 40 ft. wire, strung parallel to
> above, but without the dogleg.(I live in a house in a
> community which frowns upon aerials outside. And the
> house is an electric interference pit- even the T.O.
> works poorly in here...This is temporary, but the
> condition at the moment)
>
> I am trying to figure how to: 1.Clean up the signals
> coming in some more; 2 Replace the bumblebee caps- I
> am having trouble discrening some of the colors(black
> & blue, mainly) due to the age of them.(Does anyone
> have a website which shows the conversion for
> bumblebee color codes?)
>
> Lastly, does anyone have a good, simple and effective
> way of re-securing a tube in its base? I have a couple
> which are good tubes, but are loose in their bases, as
> the original stuff has given up.
>
> Thanks to everyone in advance, I'll be looking for the
> mountain of replies ;) 
> Scott
>
> *"Alzwhire": a contraction of "Alzheimer's" and "Wire"
> to indicate a very confused "Random wire" antenna!
>
>
>        
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-- 
Al Klase – N3FRQ
Flemington, NJ
http://www.skywaves.ar88.net/