Reference: IC-294

LM324N

Quad opamp

Reference: IC-288

NE5532AP

Texas Instruments DIP8

Reference: IC-272

OPA2604AP

Burr-Brown DIP8

Reference: IC-276

TL074CN

Texas Instruments DIP14

Reference: IC-292

CA3130

Reference: IC-285

OPA2134PA

Reference: IC-287

LM358AN

Reference: IC-286

NJM4580D

Dual DIP-8 Operational Amplifier

Reference: IC-268

TL062ACP

OP07N

DIP-8 Operational Amplifier