If I may ask which show were you at? I usually dont make it to many shows around here mainly because Im unaware of there existence until after.
PB,
They are copper tubes containing solder. You'll see on the outside that there is a dark brown substance which has a pink spot thereon. One takes two pieces of electrical cable (normally field telephone cable) with the ends bared and inserts one in either end of the tube. You the strike the pink spot (which in reality is a giant match head) on the striker surface of the box. This ignites and in turn ignites the brown pyrotechnic compound, which burns slowly and melts the solder joining the two pieces of cable.
TimG
P.S. As far as I'm aware, they were originally intended as a Signal's store for joining field telephone cables such as D8/D10
Found this and thought you may be interested... WW2 SOE & OSS Issue Sleeves Jointing Self Soldering No3 http://www.worldwarwonders.co.uk/WW...ssue-Sleeves-Jointing-Self-Soldering-No3.html |