[amsat-bb] Re: Fibreglass tube for G5500?

[Alan P. Biddle]

Chris,

As has been pointed out, an aluminum liner won't work.  I have a fiberglass
tube, and found a solid wood rod at a local building supply store.  It is a
perfect friction fit.  I cut it about 2 inches shorter than the tube,
leaving about an inch space at each end.  I stood it on end, and filled one
end with RTV.  After it hardened, I swapped ends and sealed the other end.
It has been in use for almost 15 years with no failures or leakages.

73s,

Alan
WA4SCA