BUY HP2202 https://www.utsource.net/itm/p/159977.html
Positive Voltage Regulators
The HP2202 is an 8-pin dual operational amplifier from Agilent. It is a low-cost, high-performance device designed for general-purpose applications. It features low offset voltage, low input bias current, low noise, low distortion, and high gain bandwidth product. It is ideal for use in signal conditioning, active filters, and other audio and general-purpose applications. (For reference only)