Transistor, TO-92 Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14 Dual Operational Amplifiers, DIP-14/SOIC-14 | | C2, C5, C6, C8, C9, C11, C12. - C10, C14 is a corner for narrower modules if we want its recipients to know that what they do J175 jfet (~50¢) and H11F1M ($5!) optocoupler, otherwise basic jellybeans ** can a cheaper optocoupler work? What's it even for? CV Generators.