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Hallicrafters S-120

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Hallicrafters S-120 Empty Hallicrafters S-120

Post by Nigelh on Wed Jan 18, 2012 1:34 am

Good morning All.
I have a Hallicrafters S-120, that has a rather scratchy, slightly garbled audio.
As yet, have found no bad components, but there is a bit of an ac hum.
Sensitivity and volume seem to be fine.
Can anyone suggest a cause?
Thanks
Nigel

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Post by Bill Cahill on Wed Jan 18, 2012 3:31 am

Hum-Bad electrolytics.
Scratchy garbly sound, bad paper capacitors.
We can help.
Welcome to the forums
Bill Cahill

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Post by Nigelh on Wed Jan 18, 2012 1:34 pm

Hi, Bill
Thanks for the welcome.
And thanks for the tip.
Sure enough, one of the electrolytics was a bit doubtful, so replaced it.
Hum and distortion gone and the set is working well.
Regards
Nigel

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Post by Bill Cahill on Wed Jan 18, 2012 2:14 pm

Congrats. However, if you want this set to work reliably, you will need to replace the old paper capacitors as well.
May we see pictures?
Thanks.
Bill Cahill

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Post by Nigelh on Thu Jan 19, 2012 1:48 am

Hi, Bill
I've not uploaded photos to your site before, so I hope this works!
I used the "Host an image" button for two images - hope they come through.
Regards
Nigel

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