Loosely compensated volume control on a resistor with one tap (Option 2). Scheme, description

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Loosely compensated volume control on a resistor with one tap (Option 2). Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Tone, volume controls

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A somewhat greater degree of frequency response correction in the low-frequency region is provided by the regulator, the circuit of which is shown in this figure. Its prototype was used in Philips radio receivers in the 50s [3]. Examples of the use of such regulators in modern industrial designs are unknown to the author. The R2C2R3 circuit forms a low-pass filter, the output signal of which is fed to the regulator tap. This TRG has the same disadvantages as the previous one, although to a lesser extent.

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Literature

Ivanov A. Finely compensated volume control - Radio No. 12/1993 p.21
Zuev P. Volume control with distributed frequency correction - Radio No. 8/1986 p.49-51
Davydov M. Acoustic systems of broadcasting receivers - Radio No. 4 / 1956 pp. 52-54
Bozdeh J. Designing additional devices for tape recorders (1977, translated from Czech) - M. Energoizdat, 1981. pp. 174,188.

Author: A. Shikhatov; Publication: bluesmobile.com/shikhman

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