Sorry, this page is not translated yet. Automatic translation used.
Electro-megaphone "Echo-2" since 1980 produced the Kharkov plant "Radiodetal". Electro-megaphone "Echo-2" is designed to enhance speech in a radius of up to 20 meters and can be used by guides, coaches, bus drivers, etc. An electro megaphone consists of a microphone, a transistor amplifier, two loudspeakers and a power source housed in a plastic case. The electro megaphone reproduces the frequency range 200 ... 5000 Hz. Rated output power 2 watts, maximum 4 watts. The power of the electro-megaphone is provided by 4 flat KBSL batteries. Current consumption without signal 20, with a maximum signal of 500 mA. The dimensions of the electro-megaphone - 215x120x58 mm, weight 1.8 kg. The efficiency is maintained at a temperature of -40 to 50 ° C.
Based on information from collection of Valery Khartchenko