Portable electric megaphone "Vitia".
Acoustic systems, passive or active, as well as electro-acoustic units, hearing aids, electric megaphones, intercoms ...Electric megaphonesSince 1974 the portable electric megaphone "Vitia" has been produced by the Pavlovo-Posad plant "Exiton". The Vimia electric megaphone is designed to amplify speech within a radius of 8 ... 10 meters and can be used by guides, trainers, bus drivers. The megaphone consists of a microphone, a transistor amplifier with a loudspeaker and batteries, combined in a plastic case. Microphone used MD-64, loudspeaker 1GD-40. The amplifier and loudspeaker reproduce the sound frequency band - 100 ... 8000 Hz. The nominal output power of the amplifier is 1 W. Power is supplied from two KBS-L-0.7 batteries. Megaphone works well at ambient temperatures from -40 to + 50 ° C. The dimensions of the electric megaphone are 195x110x56 mm. Its weight with batteries is 1 kg. The price of an electric megaphone is 25 rubles.
