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#1
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Don't let the aging capacitors and tube fears deter you from considering one
of the better pieces made by National, Hammarlund, Hallicrafters or Collins. Aligned and maintained they will outpace anything new that has come along in the last 30 years. The dynamic range is superb and makes the comparison with new stuff like comparing the audio of the old well-built Western Electric telephones with the raucous crappy audio that is found on cell phones. Stability? Most of the better receivers from that era pose no NOTICEABLE drift. Nit-picking absurd specifications like saying a new rig is better than an older one because it only has 10 Hz drift is nonsense. Even on CW or SSB I doubt most listeners can even detect 100 cycles of instability. Replacing capacitors is not rocket science. You remove one that says "10 uF" and you replace it with a new one that says "10 uF." Duh. Tubes are still plentiful and with careful shopping (not the price gougers on scum-Bay) you can buy NOS or used-but-verified good inexpensively. I have restored lots of these receivers and even the worse cases never needed more than 1 or two tubes. |
#2
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Clive wrote:
Don't let the aging capacitors and tube fears deter you from considering one of the better pieces made by National, Hammarlund, Hallicrafters or Collins. Aligned and maintained they will outpace anything new that has come along in the last 30 years. No. |
#3
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I have a Hallicrafters S-38EB radio.I bought it for about four dollars
about fifteen something years ago at a Goodwill store. The radio does work and it is in very nice physical and cosmetic condition.It is a little dusty right now, just like most thingys in my house.I am not Mr.Clean.The dust helps protect it, you seeeeee,,,,,,, http://www.shopgoodwill.com http://www.devilfinder.com Hallicrafters S-38EB Radios cuhulin |
#5
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Bob Dobbs wrote:
Clive wrote: Even on CW or SSB I doubt most listeners can even detect 100 cycles of instability. I can definitely tell when some station is ten or more kcs off where I'm tuned, and go to the RIT automatically. If they continue to drift, I might chase them awhile, but usually move on, suggesting they sober up and quit leaning on the VFO knob. My receiver is stable to less than a twentieth of a cycle over several months. (Using WWV as a reference) 100 Hz is a noticeable change in pitch. A 50 Hz step makes listening to music on SSB very difficult. I do my major DXing through a 250 Hz filter, so if you drift you go bye-bye. |
#6
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On Mar 8, 4:32*am, dave wrote:
Bob Dobbs wrote: Clive wrote: Even on CW or SSB I doubt most listeners can even detect 100 cycles of instability. I can definitely tell when some station is ten or more kcs off where I'm tuned, and go to the RIT automatically. If they continue to drift, I might chase them awhile, but usually move on, suggesting they sober up and quit leaning on the VFO knob. My receiver is stable to less than a twentieth of a cycle over several months. (Using WWV as a reference) 100 Hz is a noticeable change in pitch. *A 50 Hz step makes listening to music on SSB very difficult. *I do my major DXing through a 250 Hz filter, so if you drift you go bye-bye. No kidding. I find even 10 Hz offset uncomfortable to listen to in music. |
#7
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On Mar 8, 10:16*am, bpnjensen wrote:
On Mar 8, 4:32*am, dave wrote: Bob Dobbs wrote: Clive wrote: Even on CW or SSB I doubt most listeners can even detect 100 cycles of instability.. I can definitely tell when some station is ten or more kcs off where I'm tuned, and go to the RIT automatically. If they continue to drift, I might chase them awhile, but usually move on, suggesting they sober up and quit leaning on the VFO knob. My receiver is stable to less than a twentieth of a cycle over several months. (Using WWV as a reference) 100 Hz is a noticeable change in pitch. *A 50 Hz step makes listening to music on SSB very difficult. *I do my major DXing through a 250 Hz filter, so if you drift you go bye-bye. No kidding. *I find even 10 Hz offset uncomfortable to listen to in music.- Hide quoted text - - Show quoted text - That depends on the music! |
#8
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On Mar 8, 1:26*pm, wrote:
On Mar 8, 10:16*am, bpnjensen wrote: On Mar 8, 4:32*am, dave wrote: Bob Dobbs wrote: Clive wrote: Even on CW or SSB I doubt most listeners can even detect 100 cycles of instability. I can definitely tell when some station is ten or more kcs off where I'm tuned, and go to the RIT automatically. If they continue to drift, I might chase them awhile, but usually move on, suggesting they sober up and quit leaning on the VFO knob. My receiver is stable to less than a twentieth of a cycle over several months. (Using WWV as a reference) 100 Hz is a noticeable change in pitch. *A 50 Hz step makes listening to music on SSB very difficult. *I do my major DXing through a 250 Hz filter, so if you drift you go bye-bye. No kidding. *I find even 10 Hz offset uncomfortable to listen to in music.- Hide quoted text - - Show quoted text - * That depends on the music!- Hide quoted text - - Show quoted text - True, true - I suppose some might even be improved by adjustments of this type... |
#9
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#10
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On Mar 8, 12:18*pm, BDK wrote:
My NRD-515 tunes in 100 HZ steps and SSB would be really annoying if it didn't have the (modified) delta tune for pitch control. 10HZ is fine, but 1HZ, is better. If you have perfect pitch, it is essential! :-D Bruce ******* - BDK.. Leader of the nonexistent paid shills. Non Jew Jew Club founding member. Former number one Kook Magnet, title passed to Iarnrod.- Hide quoted text - - Show quoted text - |
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