Sorry, this page is not translated yet. Automatic translation used.
Since 1982, the stereo recorder designer has produced the Astrakhan Machine-Building Plant Progress. The instrument consists of three completed blocks, made on a printed circuit board with dimensions of 125x90 mm. These are the amplifier of reproduction, recording, the block for signal level indicators, the RF generator of erasure currents and bias, the rectifier and the stabilizer BP. The constructor includes wires, variable and fixed resistors. The set is designed for upgrading reel to reel tape recorders. Using a set, you can turn a mono tape recorder into a stereo or you can improve the parameters of a stereo recorder, since the characteristics of the set correspond to the 1st class of complexity. The playback amplifier has a frequency range of 30 ... 20000 Hz at a speed of 19.05 cm / s and 30 ... 16000 Hz at a speed of 9.53 cm / s. THD 0.2%. The signal-to-noise ratio at the linear output is -52 dB.