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#1
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I'm working on a Hallicrafters S-38 and have already recapped the radio
and even changed a few resistors that measured a bit high. I receive loads of stations on the standard broadcast band, but the radio is not nearly as sensitive on bands 2, 3, and 4. Anyone have some help with this one? Perhaps an alignment would do the trick? Or is there something else? Any help would be appreciated. Thanks. |
#2
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![]() "Rod" wrote in message oups.com... I'm working on a Hallicrafters S-38 and have already recapped the radio and even changed a few resistors that measured a bit high. I receive loads of stations on the standard broadcast band, but the radio is not nearly as sensitive on bands 2, 3, and 4. Anyone have some help with this one? Perhaps an alignment would do the trick? Or is there something else? Any help would be appreciated. Thanks. What are you using for an antenna? Frank Dresser |
#3
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Well, that could be a reason. I'm down in the basement with just a
short piece of wire that I connected for testing purposes. Perhaps I should try something better. I have some dipoles strung for my ham station. Perhaps that is all that's needed. |
#4
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Hi,
Given the age of the unit, and that you have already had to replace a few components that had changed value, an alignment would probably be in order. Try the better antenna first and if your happy with the sensitivity than don't worry about it. I myself would do the alignment just to be sure. Good Luck, RoD "Rod" wrote in message oups.com... I'm working on a Hallicrafters S-38 and have already recapped the radio and even changed a few resistors that measured a bit high. I receive loads of stations on the standard broadcast band, but the radio is not nearly as sensitive on bands 2, 3, and 4. Anyone have some help with this one? Perhaps an alignment would do the trick? Or is there something else? Any help would be appreciated. Thanks. |
#5
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Well part of the my concern is that I'm working on another S-38 and
using the same piece of wire for an antenna, it picks up stations much better and louder than the one in question. I'll get to the alignment this week and then go from there. Thanks to all. Rod |
#6
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![]() "Rod" wrote in message oups.com... Well part of the my concern is that I'm working on another S-38 and using the same piece of wire for an antenna, it picks up stations much better and louder than the one in question. I'll get to the alignment this week and then go from there. Thanks to all. Rod Swapping tubes with the sensitive s-38 was also a good suggestion. Make sure the contacts on your bandswitch are clean. Frank Dresser |
#7
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On Mon, 6 Mar 2006 16:36:00 UTC, "Rod" wrote:
I'm working on a Hallicrafters S-38 and have already recapped the radio and even changed a few resistors that measured a bit high. I receive loads of stations on the standard broadcast band, but the radio is not nearly as sensitive on bands 2, 3, and 4. Anyone have some help with this one? Perhaps an alignment would do the trick? Or is there something else? Any help would be appreciated. Thanks. I am in the process of restoring two S-38's, a B and C model, in fact just got through painting the case and starting to clean the chassis. The radio has been recapped, but needs a new power cord. Should you replace old cloth covered wires with modern wires also? I am new to this so pardon my ignorance of the radios. I used to have one when I was in jr. high and high school and wanted one for the nostalgia. What else should one look for on the chassis to replace or clean/replace? Thanks -- "What do you mean there's no movie?" |
#8
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Cloth covered wiring is fine. I try not to replace things unless there will
be an improvement. Power cords can be unsafe, but the cloth usually does not deteriorate. Once caution about using an S-38 in the basement. Remember the chassis is ac-dc and there can be some conduction through the floor. More than one amateur has been killed working in a basement, when insulation failed. One of the league's heavy hitters was killed in the 30's when his ac transformer shorted out to a chassis and he became the path to ground. A GFI would be a good investment in a basement when working with the old gear. Colin K7FM |
#9
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A GFI would be a good investment
Or isolation transformer. And carefully inspect the rubber washers that insulate the chassis from the cabinet. If they are degraded, you can get a shock from the metal cabinet, which is now connected to your power line. Fortunately, they are easily replaced (check the plumbing supply department at your local hardware store). More info about safely operating a "hot chassis" radio can be found at http://antiqueradio.org/safety.htm . Phil Nelson |
#10
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wrote in message
news:qon2qBoLzSnd-pn2-2LMqmkgD9OtW@localhost... On Mon, 6 Mar 2006 16:36:00 UTC, "Rod" wrote: I'm working on a Hallicrafters S-38 and have already recapped the radio and even changed a few resistors that measured a bit high. I receive loads of stations on the standard broadcast band, but the radio is not nearly as sensitive on bands 2, 3, and 4. Anyone have some help with this one? Perhaps an alignment would do the trick? Or is there something else? Any help would be appreciated. Thanks. I am in the process of restoring two S-38's, a B and C model, in fact just got through painting the case and starting to clean the chassis. The radio has been recapped, but needs a new power cord. Should you replace old cloth covered wires with modern wires also? I am new to this so pardon my ignorance of the radios. I used to have one when I was in jr. high and high school and wanted one for the nostalgia. What else should one look for on the chassis to replace or clean/replace? Thanks Count Floyd (SCTV) was always a humorous character :-) Web sites for various S-38 restorations and information: Brian Ripley http://www.thes38guy.com/Page_1x.html Bob Piekarz - Original S38 cardboard backs (same original mfg) ! http://www.radioantiques.com/mall.html Bill Turner's replacement electrolytic (Bob Piekarz also sells these for Bill) http://www.dialcover.com/caps.html Stan Watkins http://www.stanwatkins.com/hals38.htm Phil Nelson http://antiqueradio.org/halli08.htm John's restoration http://www.schmitzhouse.com/Johns_Electronics_08.htm Just Radios - Capacitors (safety and others) http://www.justradios.com/ w9gb |
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