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I think that starman may be on the right track here. The light switch
is mounted on a post totally separate from the main board, and I couldn't get the MW band to come "on" of go "off" by bumping or shaking the radio. I took the main board completely out of the radio today and gave it a cursory look-over, but couldn't find anything amiss. I'll take Peter's advice and give it a thorough going over sometime soon, just to make sure it's not a solder joint gone bad. I've put together several radio kits, and have taken electronics "101" at a local community college, but unfortunately I don't have enough knowledge to be able to determine which is the MW section of this radio. There is a shop in the town where I work (Champaign, IL) called "Radio Doctor", so I'll probably give them a call to see what they would charge to look at it (if they even work on this sort of radio). I gave $15 for it at the garage sale, and it's really a nice little rig, but I don't want to put a bunch of money into it. Dave. Turning on the dial light could create a voltage transient in the receiver's power supply that may be temporarily repairing a defective component such as a transistor. See if you can determine which active components (transistors and IC's) are used only for the MW section. |
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