Translational amplifier '' Step-103 ''.
Amplifying and broadcasting equipmentThe broadcast amplifier "Step-103" (8UP1-100-103) has been produced by JSC "Slavgorod Radio Equipment Plant" since 1990. The amplifier "Step-103" is designed to amplify phonograms from microphones, EPU, tape recorder, receiver, etc. It is used for the organization of local radio broadcasting, notification at industrial enterprises, objects of trade, education, health care, culture, etc. The amplifier provides: signal mixing; input jacks for connecting 4 microphones, pickup, tape recorder, receiver, broadcast line; output sockets and terminals for connecting: tape recorder for recording, radio lines with a voltage of 30 V, a broadcast line with a voltage of 120 V, transformerless speakers (8 Ohm), a control loudspeaker, an input of a power amplifier; smooth gain control for inputs for connecting microphones and a pickup; smooth adjustment of the frequency response separately for low and high frequencies; switchable noise reduction and loudness devices; disabling the frequency response regulators; protection against short circuit and overload at the output; indication of the output voltage level; acoustic control through an external loudspeaker; connection of a microphone with balanced output via baluns. Specifications Maximum output power 100 W. The reproducible range of audio frequencies at the outputs for transmission lines is 40… 16000 Hz, for acoustic systems 31.5… 20000 Hz, at the linear output 20… 20000 Hz. Frequency response in the nominal range is often no more than 1.5 dB. Harmonic factor 0.5 ... 2%. The depth of the frequency response correction is not less than ± 15 dB. Power supply - power grid. Power consumption no more than 250 watts. Amplifier dimensions 470x140x360 mm. Weight 22 kg. The amplifier includes 2 microphones, 2 baluns and a line shield.
