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High-quality 4558 dual operational amplifier IC, selected and tested for reliable performance in vintage synthesizers, drum machines, and audio equipment. Fully compatible with a wide range of classic gear including Yamaha DX7, Korg Polysix, Wavestation, Lambda, EX7, DS‑55, Moog Liberation, and more. Ideal for restoring audio circuitry.
CMOS triple SPDT analog switch, essential for routing control voltage or audio in classic keyboards and synthesizers. DIP‑16 low‑leakage design.