radio aerial (antenna) won't stay in position
 

On Mar 4, 6:22*am, "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.

I had one do this. It was caused by wear from folding and unfolding
the antenna. I think the problem started when the chrome plating was
worn off the base metal. About the only thing you can do short of
replacing the antenna s to shim it where it hindges. I used a piece of
brass shim stock I had on and. Most hobby shops carry it. There may be
worn hardware such as washers that can be replaced.

Jimmie

radio aerial (antenna) won't stay in position
 

JIMMIE wrote:
On Mar 4, 6:22 am, "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.

I had one do this. It was caused by wear from folding and unfolding
the antenna. I think the problem started when the chrome plating was
worn off the base metal. About the only thing you can do short of
replacing the antenna s to shim it where it hindges. I used a piece of
brass shim stock I had on and. Most hobby shops carry it. There may be
worn hardware such as washers that can be replaced.

Jimmie

The problem is with the small brass washers. They've worn down over
time and are not as thick as they used to be. Also, they've been
polished to slickness by all the moving. Find replacements or at least
rough them up a bit, and squeeze the fitting a bit as other respondents
have suggested.

jak