![LM2902N, quad general op-amp, DIP-14](http://www.getelectronic.net/cdn/shop/products/PA250024_{width}x.jpg?v=1572396612)
7BW0KVFE3
https://www.ti.com/lit/ds/symlink/lm2902.pdf?HQS=TI-null-null-mousermode-df-pf-null-wwe&ts=1606764544771&ref_url=https%253A%252F%252Fnz.mouser.com%252F
https://www.ti.com/lit/ds/symlink/lm2902.pdf?HQS=TI-null-null-mousermode-df-pf-null-wwe&ts=1606764544771&ref_url=https%253A%252F%252Fnz.mouser.com%252F