{"id":12635,"date":"2017-12-16T18:22:39","date_gmt":"2017-12-17T02:22:39","guid":{"rendered":"https:\/\/rustybolt.info\/wordpress\/?p=12635"},"modified":"2017-12-17T23:29:31","modified_gmt":"2017-12-18T07:29:31","slug":"2017-12-15-olympic-860-radio-capacitor-replacement","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=12635","title":{"rendered":"2017-12-16 Olympic 860 Radio Capacitor Replacement\u00a0"},"content":{"rendered":"<p>I was the only bidder on a lot of three radios, one of them is an Olympic model 860 AM transistor radio. &nbsp;This radio uses four AA cells for a total of 6 volts DC.<\/p>\n<p>Overall the radio is in good condition &#8211; no chips or cracks. &nbsp;I powered it up and if I turned the volume to maximum and listened very close, I could barely hear a station when I tuned it. &nbsp;It was working, but the electrolytic capacitors were dead, letting almost no audio signal through.<\/p>\n<p>I counted eight electrolytic capacitors, so I got them, they were common values, two 80 uF (used 100 uF), several 30 uF (used 33 uF) and a 3 uF (used 3.3 uF).<\/p>\n<p>I got through replacing several capacitors; there were still a few left, but their leads were covered by the tuning dial. &nbsp;The screw that held the dial to the capacitor was covered by the plate that had the 5.5 to 16 kHz frequencies on it, so I didn&#8217;t want to damage it because it would be easily seen. &nbsp;It was glued down with tough contact cement so I had to spend a lot of time gently prying it up with a knife blade. &nbsp;The plate survived with minor bending, which I straightened out.<\/p>\n<p>I got the rest of the capacitors replaced, and applied power to see if it worked. &nbsp;Success! &nbsp;But there were damaged wires and loose connections on the battery springs, which I had to resolder. &nbsp;I glued the dial plate and left it to dry for several hours. &nbsp;Later I reassembled the rest of the radio and tried it again to make sure it worked.<\/p>\n<p>There are only three deficits, one from wear. &nbsp;The back snaps into place, and opens with a coin in a slot. &nbsp;The tabs that hold it in place are worn and the back comes off too easily. &nbsp;But this isn&#8217;t much of a problem because the radio comes withva leather case which holds the radio together. &nbsp;However the case was poorly designed and the radio is very difficult to remove or insert into the case. &nbsp;The strain on the case has caused the stitches to tear loose on the case. &nbsp;If the stitches are repaired, they will probably be torn open again because of the case design.<\/p>\n<p>The other minor deficiency is the earphone jack. &nbsp;It&#8217;s a 2.5 mm jack, which is an odd size. &nbsp;Also there is an external power jack and it&#8217;s the same 2.5 mm jack as the earphone jack. &nbsp;Putting the plugs into the wrong jacks could damage the radio. &nbsp;The best solution would be to change the earphone jack to a 3.5 mm jack, which would solve both problems.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I was the only bidder on a lot of three radios, one of them is an Olympic model 860 AM transistor radio. &nbsp;This radio uses four AA cells for a total of 6 volts DC. Overall the radio is in good condition &#8211; no chips or cracks. &nbsp;I powered it up and if I turned<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=12635\"> <\/p>\n<p> (Read More&#8230;)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[311,262,335,1],"tags":[],"class_list":["post-12635","post","type-post","status-publish","format-standard","hentry","category-am-band","category-receiver","category-repair-alignment","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/12635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12635"}],"version-history":[{"count":3,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/12635\/revisions"}],"predecessor-version":[{"id":12638,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/12635\/revisions\/12638"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}