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Low Frequency OTL Amplifier
L. Kononowicz, Candidate of technical sciences (translation A. W.),
In recent years, both works in the Soviet Union and abroad have been carried out on the construction of devices (including audio amplifiers) providing amplification and reproduction of sound with little distortion. In the initial stages of low frequency amplifiers, due to the low signal voltages occurring there - non-linear distortions are small, and frequency distortions can be lowered by choosing the appropriate values of the amplifier elements. The largest distortions arise in the output stage of the amplifier, the main cause being usually the output transformer. The output transformer limits the range of the frequencies to be reproduced.