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Old 12-23-2007, 01:03 PM   #1
N7OQ
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Default Radios the glow in the dark

Awhile back a guy at work gave a old receiver he had collecting dust, It is a Hallicrafters SX-100, didn't work and not in perfect shape. This is a Good size receiver takes a lot of space on my desk. Anyway I replaced the electrolytic Caps and found a great tube tester at a garage sale for $15. I replaced the bad tubes but it still did not work made weird noise but no real audio. I quickly found that the B+ was low, real low with further troubleshooting I found that a cap was shorted, so I replaced it with a modern one got my B+ back and now it works great. I did a quick alignment but I need to get a better RF signal generator. I'm missing a fer knobs and so far I haven't been able to find them, might have to use modern replacement ones.

This receiver does a good job, good sensitivity and selectivity, the analog dial is easy to use once you figure it out, there are 2 tuning dials one is a main tune and the other is a band spread dial. You move the mail dial to a mark then the band spread dial is calibrated for real fine tuning. These old radios are a lot of fun to play with and my Son loves to go in the shack and tune it around the bands to see what he can hear.

Now I need to get a tube type transmitter and get it working. I plan on going to a Hamfest in February at Monterey, CA So might find one at the flea market, who knows.
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Old 12-23-2007, 01:38 PM   #2
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How about home-brewing a tube rig. Several articles in QST over the decades

As for alignment, Try putting WWV where it belongs. that is about the easiest way
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Old 12-23-2007, 08:32 PM   #3
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That reminds me, I have an old Hallicrafters I need to work on.

So many radios, so little time.

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Old 12-24-2007, 05:34 PM   #4
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And to think, I threw an old Hallicrafter in the dumpster a couple of months ago.
I have access to lot of boat anchors. A lot of Heath kit equipment.
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Old 12-24-2007, 11:49 PM   #5
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Quote:
Originally Posted by w6pea View Post
And to think, I threw an old Hallicrafter in the dumpster a couple of months ago.
I have access to lot of boat anchors. A lot of Heath kit equipment.
Oh man don't tell me that, they get good money for this stuff on Ebay.
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Old 01-18-2008, 10:56 AM   #6
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Default Ht-37

HT-37 sitting on a shelf in my shop. Needs some tlc but looks to be all there. Real dirty though. I keep it around in hopes of restoring it and putting it on the air. I believe it does DSB for AM. And MAN, its heavy! I've got a complete new lineup of tubes put away for it too. Now to retire and do the time on it.


Not going to carry this along anytime in my RV.
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Old 01-19-2008, 05:54 PM   #7
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Quote:
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Oh man don't tell me that, they get good money for this stuff on Ebay.

I know it makes me sick to my stomach to think I could have got someone to pay me for a radio which sk that I knew said it was worthless
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