|MadSci Network: Engineering|
Hello Nikita: This sounds like an interesting problem. Let's take the antenna issue first. I assume that the antenna is a standard extendable whip type antenna. If that is the case, it probably is conductive and sticking the broken section back into the remaining piece should be just fine. Next lets address the intermittent flickering light. Although it is interesting to play with, it is not the safest thing in the world. When the flickering is happening, the connection between the light bulb and the base is not proper, and all kinds of sparks are being generated inside the base, and those sparks could cause a fire. Those same sparks are physically melting and "arc-welding" parts of the light bulb and the base, and that reduced the life expectancy of both. Time for the magnetic field theory that you had. Yes, those sparks are a wonderful source of unwanted electro-magnetic interference. What causes the problem can only be determined by you and some down-right experimentation. Try these to see if any of them can give an answer: 1) If the radio can be run on batteries, put batteries in, unplug it from the electric outlet, and try the flicker test to see if it still affects the radio. If the problem goes away with the batteries, then it is not the electro-magnetic noise, but it is the power line being affected. 2) Try the radio with and without the broken antenna stub in place (no flicker, just antenna) to see if the station changes when you take out the broken antenna stub. If the antenna stub makes a difference, then the problem is with the tuner not being at the optimum setting. (I don't think this is the problem). 3) Keep the electric connections the same, and separate the flickering light from the radio as far as you can in the room and see if there is a change. Then bring the two as close as possible to see if there is an effect. If the separation has an effect, then we can rule out the outlet and voltage as the problem and claim that it probably is the electro-magnetic interference from the flickering light. Let me know what you find in the above tests. And if we still haven't found the cause, we'll try some other more detailed tests. I do recommend that you get the light fixed as it may pose danger. Abtin Spantman SPANTMAN@EXECPC.COM
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