LM358AN

Reference: IC-286

NJM4580D

Dual DIP-8 Operational Amplifier

Reference: IC-288

NE5532AP

Texas Instruments DIP8

Reference: IC-282

TL072

Reference: IC-272

OPA2604AP

Burr-Brown DIP8

Reference: IC-259

LM13700

Dual Operational Transconductance Amplifier with Linearizing Diodes

Reference: IC-276

TL074CN

Texas Instruments DIP14

Reference: IC-254

LM308N

Reference: IC-261

TL061

Reference: IC-275

UA741

Reference: IC-294

LM324N

Quad opamp

Brand: Burr-Brown

OPA2134PA

SoundPlus(TM) Hi-Perf Aud Op-Amp

Brand: Analog Devices

OP275

Dual Bipolar/JFET, Audio op-amp

Reference: IC-265

CA3140

Intersil CA3140 BiMOS Operational Amplifier

Reference: IC-283

JRC4558D

OP07N

DIP-8 Operational Amplifier

Reference: IC-258

TL082CP