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THE AM BULLETIN BOARD => Technical Forum => Topic started by: iw5ci on June 19, 2011, 03:11:06 PM



Title: Finally my sx-28 is done
Post by: iw5ci on June 19, 2011, 03:11:06 PM
With the help of i8kll i finally have an sx-28 in working conditions... before restoration it was ready for dust bin...


http://boatanchors.tumblr.com/

i am really happy! it is awesome!


Title: Re: Finally my sx-28 is done
Post by: KA0HCP on June 19, 2011, 04:28:12 PM
You did a fantastic job restoring it!   It has been fun following your progress since your first post which was a bit discourage at the poor condition.  :)

Bill


Title: Re: Finally my sx-28 is done
Post by: iw5ci on June 20, 2011, 08:07:15 AM
Thank you Bill, i am proud of the result... more the radio is ugly, dirty and not working, more the final result is fascinating...
I have already started the restoration of an RCA AR-88 and i really don't know where to put all that radios after restoration.
I live alone in a flat in Florence (ITALY) and the guest room is dedicated to my ham stuff, but i have already reached the critic mass of radios...
Even if i have 20 years to retirement, i hope one day to have an house in the countryside with full sized dipoles and a big room for the shack .
In the weekend i will try to interface the SX-28 with the ART-13 (mute) because i think this would be a nice couple for my AM station.
It's incredible how good both are stable and are precise in tuning.
The SX-28 after 70 years of life is still capable of a precision of less that 5 khz in the scale and the art-13 even more...


Title: Re: Finally my sx-28 is done
Post by: W3GMS on June 20, 2011, 10:56:59 AM
ANDREA,

Congrats on doing a FB restoration job.  You can hardly recognize what you started with when compared to your completed restoration work.  I know you put a lot of time in bringing it to completion.  The look of the SX-28 is my favorite of all the Hallicrafters gear.  I have an SX-28 downstairs, its all original and need to be restored.  Your work has inspired me to get started on it!

73,
Joe, W3GMS 


Title: Re: Finally my sx-28 is done
Post by: aa5wg on June 20, 2011, 11:05:43 AM
Andrea:
Your SX-28 looks very good.  Congrats!
One question, how do I translate the non English text that your are showing on your link?
73,
Chuck


Title: Re: Finally my sx-28 is done
Post by: WD8BIL on June 20, 2011, 11:57:35 AM
Chuck,

Try a right click anywhere on the page and select "translate with live search".
It just worked for me.

Bud


Title: Re: Finally my sx-28 is done
Post by: aa5wg on June 20, 2011, 02:24:05 PM
Bud, I will try your suggestion again when I get home.  I am at a friends home and when I right click and sellect translate I think it is translating in Russian.  I better not change any of his settings.  I will try again tomorrow.
73,
Chuck


Title: Re: Finally my sx-28 is done
Post by: KC2TAU on June 20, 2011, 03:33:59 PM
Google Translate works well, just copy and paste.


Title: Re: Finally my sx-28 is done
Post by: aa5wg on June 20, 2011, 04:02:05 PM
KC2TAU:
Thank you.
Chuck


Title: Re: Finally my sx-28 is done
Post by: iw5ci on June 21, 2011, 04:32:37 AM
Just finished to start another project :) the Ar-88 restoration..
i am really curious to compare AR-88 with SX-28 and Superpro 200...


Yesterday evening i tried to copy a very weak MW broadcast.
I compared the SX-28 with Collins 390 , a modern Icom 735 and a new SDR receiver.

No one did the job considerably better than the other, the station was copyable with all
the receivers BUT even if it was very weak, the Sx-28 with the PM-23 speaker was more
pleasant that the ic-735 with internal speaker of the sdr with PC speakers or collins 390
with a Kenwood SP-230 speaker.




Title: Re: Finally my sx-28 is done
Post by: Ed/KB1HYS on June 21, 2011, 06:27:35 AM
Very nice Work OM.  It shows lots of hard work there.


Title: Re: Finally my sx-28 is done
Post by: K5UJ on June 21, 2011, 06:18:29 PM
Ed took the words right out of my mouth.  It really looked like an uphill battle but now it is a showpiece.

Rob


Title: Re: Finally my sx-28 is done
Post by: WBear2GCR on June 24, 2011, 06:13:20 PM


Ok, how did you clean the chassis??
The IF cans?

What did you use

Did you take it ALL apart first??

Very very curious...

              _-_-bear


Title: Re: Finally my sx-28 is done
Post by: iw5ci on June 25, 2011, 06:55:02 PM
The chassis was at first washed in the bathtub . I used a degreaser with a paintbrush and the i washed very well until al grime was gone. Then after drying i used a metal wool (the same used in the kitchen to clean stoves) to make the metal bright. For if cans i polished them with CAR polish  .


Title: Re: Finally my sx-28 is done
Post by: WBear2GCR on June 25, 2011, 10:17:39 PM


Well, it looks very good!

Did you have to protect the dial and the S meter, or were those and the front
panel removed first??

How about the potentiometers?

               _-_-bear
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