sadky, вот оно че) Нашел, не знал, еще и поиск с этим обзором от ИИ подкидывает.
The Friedman BE-100 clean channel uses a modified Fender-style tone stack placed after a mid control. The exact proprietary schematic is tightly guarded by Friedman, but historically relies on a traditional Treble (250kΩ) / Bass (250kΩ) setup (and sometimes Middle in Deluxe models) paired with a 3-way Bright switch
Treble: 250kΩ audio taper potentiometer with a standard ≈ 250pF silver mica slope cap.Bass: 250kΩ or 1MΩ audio taper potentiometer with \(\approx .047\text{\mu F}\) to \(.1\text{\mu F}\) capacitors.Bright Switch: A multi-position capacitor network (typically incorporating values like 100pF and 470pF or similar) on the clean volume pot to retain chime at lower volumes.