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The Cobra 139XLR used to be plagued with cracking PC boards, and there used to be a kit you could buy that would include metal strapping and rubber/foam standoffs that would exert pressure on the board in order to keep in from shaking and flexing.


i imagine this concept could be applied to any radio, and a solution could be fabricated.


here is a link to the article (look at 'problem B'):

http://www.cbtricks.com/pub/secret_cb/vol_02/graphics/secret_cb_vol_02_pg45_50.pdf


LC