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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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radio aerial (antenna) won't stay in position
"Ron" wrote in message ... john zeiss wrote: We have a small portable sony radio, and it has the usual type of extendable aerial (antenna) that you get on small japanese radios. It now refuses to maintain its position at an *angle*. Slowly but surely it drops down until it reaches the horizontal position. The small screw has been tightened up, but even as tight as we think we can do it without stripping the slots in the screw head, it is not enough to *clamp* the aerial to stop it dropping down. Basically the aerial at its base is a square shape with one small bronze coloured washer each side of it and that all sits in a ' U ' shaped base with it all being clamped with a small screw. Are there any tricks you know of, to get it to behave? Thanks. Take the two washers out and restore the 'curl' in them by pressing them over the shaft of a screwdriver. This is the 'correct' fix for the problem - I have had to do it many times to radios which have crossed my bench, and are similarly afflicted. If you want to 'belt and braces' it, you can remove the antenna and the curl washers from the yoke part that stays in the radio, and then treat the yoke to a *gentle* squeeze with a pair of Mole grips. FWIW, the screw can go up quite tight without breaking or stripping threads. Also, if you prefer to work on it not attached to the radio, the connection inside is usually made by a fixed strap, so you can simply undo the screw just below the antenna base, remove it completely, and then lift the complete antenna out of its mounting hole. Arfa |
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