Abstract: An audio communications control system operates between multiple voice communications systems and a single headset worn by an operator accessing the multiple communications systems via voice transmission. The single headset includes a left speaker, a right speaker, and a microphone. The audio interface provides an electrical connection and operation with each of the voice communications systems, even though each may operate with differing equipment and signal processing. The audio interface switches discrete voice communications signals and routes them to one of the left speaker, the right speaker, and conversely from the microphone of the headset to any of selected systems.

Abstract: An improved thickened instant coffee beverage mix, containing a mix of from about 15-90%, preferably 27%, maltodextrin with the rest, to 100%, of an agglomerated starch, and also 0.2-0.3% of mono and diglycerides, together with coffee flavorants, which can be quickly dissolved in water of at least 120° F water without delay or forming clumps.

Abstract: Improved ceramic compositions are provided that are useful in the formulation of microwave susceptors as well as the susceptor articles fabricated therefrom. The novel compositions include a binder and a microwave absorbing material of compounds selected from the group consisting of carbides, borides, or nitrides which compositions are sintered at temperatures above about 800.degree. C.