Everywhere I traveled in Vietnam, I saw numerous examples of field expedients. The Signal Corps was especially adept at fabricating radio antennae in any environment, from mountains, to jungle, to the flat regions of the Mekong Delta. Unable to achieve the range they needed using the antenna tower they had been issued, our division signal battalion deployed a blimp, similar to the barrage balloons seen over London during World War II, to raise our radio antennae high enough to reach our far-flung combat and support units.
One of the more delicate parts in the Remington typewriter was a chain used to transfer energy from the operator to the spool that moved the inked ribbon from one spool to the other. Each time a key was pressed, it used a watch-like system of gears to convert the up-and-down motion into a rotating motion, that turned another system of gears and pulleys to turn the ribbon take-up spool. The chain that transferred the movement from the bottom to the type of the mechanism rusted and frequently broke despite our attempts to keep them clean and oiled. Taking one apart we discovered that this chain resembled our dog tag chain and we were able to restore our typewriters to use by adapting one for this purpose.