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 Post subject: hallicrafters SX-110
PostPosted: Sep Thu 29, 2011 10:06 pm 
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Joined: Aug Wed 17, 2011 2:29 am
Posts: 26
A few years ago, I bought a Hallicrafters SX-110 at a local meet. The seller told me it was working last time he used it.

As it turns out, I put it in the closet and forgot about it. I recently found it and want to start using it .

So heres the question: What kind of basic restoration should I do on it just in order to be able to use it? I'm not looking to do a full resto, as I'm not a genius with electronics, but I can replace basic parts and can handle a soldering iron.

Would replacing all the tubes be a good start?

Your thoughts are appreciated!


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 Post subject: Re: hallicrafters SX-110
PostPosted: Sep Thu 29, 2011 11:18 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1168
Location: Canyon Lake, TX
No need to replace the tubes unless they are proven bad . . . they are probably OK. What needs to be replaced are the paper and electrolytic capacitors.

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 Post subject: Re: hallicrafters SX-110
PostPosted: Sep Fri 30, 2011 1:10 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 15486
Location: Utica, NY 13502 (USA)
Some people like to first test the power transformer then go ahead and test tubes, change caps, test resistors. When completed they deal with what else might be wrong.

I like to test the power transformer, test for obvious B+ shorts, then bring the radio up with a variac to get an idea what I should do next.

Dave


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 Post subject: Re: hallicrafters SX-110
PostPosted: Sep Fri 30, 2011 4:35 pm 
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Joined: Aug Wed 17, 2011 2:29 am
Posts: 26
Thanks guys.

Yea, I figured its going to be the caps that need replacement. I'll have to get the SAMS guide for that box.


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 Post subject: Re: hallicrafters SX-110
PostPosted: Sep Fri 30, 2011 4:56 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1168
Location: Canyon Lake, TX
You can get a free manual download for the SX-110 here:

http://bama.edebris.com/manuals/hallicra/sx110/

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 Post subject: Re: hallicrafters SX-110
PostPosted: Sep Fri 30, 2011 8:38 pm 
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Joined: Aug Wed 17, 2011 2:29 am
Posts: 26
Thank you very much for posting that.

Guys, question:

When replacing the caps, how many do you typically do at a time? Do you do, say 5, then power the unit on and see if there are any problems?


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 Post subject: Re: hallicrafters SX-110
PostPosted: Oct Sat 01, 2011 4:10 pm 
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Joined: Oct Sat 20, 2007 3:36 am
Posts: 14393
Location: Southern NH, 03076
Ive been doing these repairs since the 60's and still do only 3-4 at a time and also check the asssociated resistors.

Carl


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