As shown in the figure, the circuit consists of a sound detection circuit and a one-shot trigger circuit, and the actuator is a relay. VT1 completes the amplification of the input audio signal. When there is a signal, 555 is set and K is pulled. At the same time, VT2 is turned on, and the charge on C2 is quickly discharged through the discharge tube inside 555 and VT2. After the sound is over, VT1 and VT2 are cut off, and C2 is charged by R2 and RP2. The temporary stabilization time of the monostable circuit is td=l. 1 (R2+RP2)C2, the delay range is 0.05~0.5 seconds, which can be adjusted by RP2.
Minsound offers a great range of Driver Units,providing accurate reproduction.high intelligibility and dependable performance in commercial sound,signaling and public address loudspeaker systems.
All models are suited for Minsound reflex horns,equipped with the industry standard 1-3/8"-male tread pattern.
This series driver units are made of Neodymium magnet for good performance.
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