BUY LA1836 https://www.utsource.net/itm/p/1272636.html
Single-Chip Home Stereo Electronic Tuning IC
Description: The LA1836 is a monolithic integrated circuit designed for use as a stereo preamplifier for radio, cassette and other audio equipment. Features: * Low noise: 0.2μV (TYP.) * Low distortion: 0.02% (TYP.) * High input sensitivity: 0.2mV (TYP.) * High input impedance: 100kΩ * High output voltage: 2.5V (TYP.) * Low power consumption: 0.7W (TYP.) Applications: * Stereo preamplifier for radio, cassette and other audio equipment. * Audio signal processing. (For reference only)