[Today’s run: 7.2 miles with wife]<\/p>\n
I worked some more on the 1930’s vintage Hallicrafters SX-11 receiver today.\u00a0 In the end I decided to declare victory and I put it on the shelf.<\/p>\n
The receiver covers from the\u00a0 AM broadcast band through 30 mHz in 5 bands.\u00a0 It has noticeably less sensitivity on one band.\u00a0 I tried a number of remedies but could not get around that issue. It doesn’t appear to be any of the easily accessible parts.\u00a0 I decided I did not want to tear it all apart or do some wholesale part swapping just to get that band working.<\/p>\n
One factor in my decision was a lack of information. I don’t know how well it would should work, other than the single band problem.\u00a0 If I had some experience with similar equipment I might know when to stop, so to speak.<\/p>\n
The controls on the SX-11 seem to work, but they don’t crisply accomplish things, not like the controls on a modern radio.\u00a0 Also the frequency dial is a rough-guess at best.\u00a0 On most of the bands 1-kHz is covered in about an inch of dial space, about a quarter of one turn of the main tuning knob.\u00a0 There is a second tuning knob for finer work, but the display is not calibrated, so your true frequency is somewhere plus or minus 500 kHz from what the dial says.<\/p>\n
Yes, I was able to find some CW on 20 meters.\u00a0 But if there had not been signals there to hear, I would have never known where I was.\u00a0 The BFO seems kind of squirrely too.\u00a0 It sort of works. Maybe it could be “repaired”.\u00a0 But the few things I tried did not accomplish much.<\/p>\n
It does do a good job on AM broadcast stations and AM shortwave. They come in clearly and sound good in the speaker.<\/p>\n
Given all of that, I am happy I got it working to some degree.\u00a0 I don’t think I will be using it much in normal ham radio operation. So I stopped before I broke something and I put it in a display position in my ham shack.<\/p>\n
It may be that I’ll someday get a chance to hear another one of these and discover that this one could be improved. If that happens I may dive in again.<\/p>\n
<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
[Today’s run: 7.2 miles with wife] I worked some more on the 1930’s vintage Hallicrafters SX-11 receiver today.\u00a0 In the end I decided to declare victory and I put it on the shelf. The receiver covers from the\u00a0 AM broadcast band through 30 mHz in 5 bands.\u00a0 It has noticeably less sensitivity on one band.\u00a0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1900","post","type-post","status-publish","format-standard","hentry","category-ham-radio"],"_links":{"self":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/1900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1900"}],"version-history":[{"count":3,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/1900\/revisions"}],"predecessor-version":[{"id":1902,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=\/wp\/v2\/posts\/1900\/revisions\/1902"}],"wp:attachment":[{"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1900"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/w0ep.us\/OM\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}