Sorry, this page is not translated yet. Automatic translation used.
The portable transistor electromegaphone "Echo-M" from I-kv 1984 was produced by the Kharkov plant "Radiodetal". Electromegaphone "Echo-M" is designed to enhance speech in a radius of up to 10 meters. It can be used by guides, coaches and bus drivers. The electro megaphone consists of a transistor amplifier, a loudspeaker and batteries placed in a plastic case as well as a remote microphone included in the connector. The electric megaphone has an audio frequency range when working with a DEMSH-1 microphone - 300..3000 Hz, the electro-megaphone itself reproduces the band from the input - 200 ... 8000 Hz, and from the external speaker - 80 ... 12500 Hz. Rated output power 0.5 watts. The power of the electro-megaphone is from 3 flat batteries, with a total voltage of 12 volts.