HPF for the built-in amplifier. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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HPF for the built-in amplifier. 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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And finally, another filter option with a fixed cutoff frequency. There are no circuit innovations here - the circuit repeats those discussed above. To simplify the design, KPS103 assemblies were used instead of single field-effect transistors. The main purpose is a high-pass filter for the built-in amplifiers of the head unit, which allows organizing two-way amplification.

HPF for the built-in amplifier. Scheme

Due to the small number of parts, it is easier to do without a printed circuit board, assembling the structure in the form of a three-dimensional module. After checking the performance, it can be filled with paraffin, compound or epoxy.

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

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