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Small-sized generator "L-31" was produced from the beginning of 1988. The compact "L-31" generator is intended for use in amateur radio practice as an auxiliary oscilloscope for developing radio equipment and tuning (removing the frequency response, ULF filters, etc.) The L-31 generator provides continuous generation of triangular, rectangular, and sinusoidal signals. It has the ability to AM and FM modulation of the signal using both internal and other external oscillator and sound source. Main characteristics: The frequency range of the generated signals from 20 Hz to 20 MHz. SOI of a sinusoidal output signal when operating on an active load in the frequency range of 20 ... 20000 Hz - 5%. The error from the upper value of 10%. Dimensions of the device 271Ñ…290Ñ…86 mm. Weight 2.5 kg. The price is 120 rubles. The generator was produced in 2 designs.