So I was just wondering if MOSFET input Opamp can be replaced by another common opamp like TL072 (which being having a JFET input, also has a very high input impedance) ? (datasheet for CA3240:
https://www.renesas.com/eu/en/www/doc/datasheet/ca3240-a.pdf )
I'd like to build anders' layout of Face Melter:
http://guitar-fx-layouts.42897.x6.nabble.com/Face-Melter-tp45063p46272.html , so I'd like to know if I should expect to have any problems by using one of those opamps that I have on hand.
Ty!