Lib="ao_symbols" part="TL074"> Quad operational amplifier, DIP-14"/> 811ef45c764021f623b8bb59234df1314fce4e91 12V, -12V and ground needed, probably up to 1amp - maybe not as efficient as a kind of routing control signals (trigger, gate and CV on the front Don't put R8 so close to R26 - D36/R47 too close Testing before powering up: Clock In Normal - 1k.