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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Default radio aerial (antenna) won't stay in position

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"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.


The pivot may be "lubricated" with powdered metal, derived from the
material itself (probably plated brass). Take the joint apart, clean it
thoroughly with solvent and/or detergent plus scrubbing, *lubricate it*,
and reassemble.

Isaac
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