![]() ![]() Tanks that can be operated in stereo require multiple transducers, and are therefore quite rare Of course you have them in Twangström! Some stereo systems had two complete tanks.Ī transmission spring follows a principle physicists call the spring-mass system, and you might recall classroom experiments in which a weight was attached to a hanging spring, making it oscillate at a certain frequency. Sharing a transducer pair minimizes mechanical and electric complexity, but the signals can only be treated as a whole. In such cases, the transducer houses each spring’s cylindrical end-stop magnets, distributed evenly within the air gap (and enclosed by the laminated core, a stack of thin magnetic iron plates). Several springs often share a transducer pair. A lot of the energy is reflected at both ends, but mechanical damping inherent in the system means that the the sound fades away naturally. ![]() Sound waves travel across the spring to the opposite end, where another transducer converts the mechanical energy back into an electronic signal. ![]() The principle is similar to a loudspeaker, except with a spring instead of the membrane. The springs are excited using electromagnetic transducers. Often referred to as a tank, spring-reverberation devices typically incorporate several metal springs suspended in a metal case. ![]()
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