From: "Randy McLaughlin" <cctalk at
randy482.com>
---snip---
Every battlefield since WWI has had "spare headsets" laying around, usually
from damaged radios.
Hi
Even so, they had relays then. One can make a useable
head set with a bar magnet, coil from a relay and
a tin can. ( Add something to stick things together with.
There are too many possibilities here to even speculate! )
Dwight