Firing Boxes arid Exploders
Commercial exploders can be purchased, but for effects work it is often better to use purpose-built devices.
Uses
Firing boxes are used mainly to fire pyrotechnics, explosives and bullet-hits, but they are also used to operate such things as panel lights, dropping boxes, remotely operated props and many other things. Used with long runs of cable they should be capable of supplying a voltage sufficiently high to overcome the resistance of the wire.
Facilities
Designs should include a rotary switch for rapid-sequence operations as well as single buttons for individual items. A permanent, transparent, plastic cover fitted over the buttons allows them to be used freely, but prevents the entry of dirt and grit.
Robust, ...
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