Finely compensated volume control with separate adjustment of the correction depth, on a resistor without taps. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Finely compensated volume control with separate adjustment of the correction depth, on a resistor without taps. 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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In the following TRG circuit (Fig. 7), also developed by the author, both the C3R6R7 correction filter and the R2R3C2 frequency-dependent divider are used simultaneously, due to which a wide correction range is achieved. Variable resistor R2 - volume control, R1 - low-frequency correction control, R4 - high-frequency.

Rice. 7 (click to enlarge)

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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