The safest way to pack a radio is to double box.
That is a box within a box, with padding between the two boxes. That
provides maximum impact and vibration security for your radio. It also
means you do not have to be an Olympic packing wizard in order to pack
your radio. It does mean that you will pay a little more in weight and
size charges for the oversized box. BUT, that extra money is better
spent on double boxing than paying for insurance.
If you use one of the two services above to pack, the insurance is
not much because they pack to a standard.
One extra caution. Any radio that has glass tubes (or even metal
tubes), is subject to problems when the carrier uses your package for
drop kicks. (Just kidding). The tubes can come loose and bounce around
inside the radio, or worse, break. We recommend that you take the
extra step of pulling all of the tubes, wrapping them in bubble wrap,
and taping them securely inside the radio. That way, we will not
receive a bunch of glass on our end. There are other ways of
"stuffing" the radio enclosure with bubble wrap and/or newspaper, but
that would be difficult to explain here.