SOLVED LF412CP substitute?

[Fontelroy]

Howdy folks, I’m working on a skeptical boost build and the ic it calls for is a LF412CP which I’m not super familiar with and don’t have at hand. Does anyone know if there’s a quick and easy substitute?

 

[jwin615]

TL072 or other nicer jfet dual opamp should work until next mouser order.

 

[Cybercow]

Yep - a TL072 will do nicely in place of a LF412CP.

 

[Fontelroy]

well I'm getting nothing but a high pitch whine that changes with the volume knob, pretty sure I fried at least one of the jfets. smd and my sausage fingers do not get along