OPA2604AP

Reference: IC-273

TL022

Reference: IC-275

UA741

Reference: IC-257

CA3080E

Intersil OTA

Reference: IC-259

LM13700

Dual Operational Transconductance Amplifier with Linearizing Diodes

Reference: IC-294

LM324N

Quad opamp

Reference: IC-261

TL061

Brand: Analog Devices

OP275

Dual Bipolar/JFET, Audio op-amp

Brand: Burr-Brown

OPA2134PA

SoundPlus(TM) Hi-Perf Aud Op-Amp

Reference: IC-254

LM308N

Reference: IC-263

LM13600N

Reference: IC-286

NJM4580D

Dual DIP-8 Operational Amplifier

Reference: IC-288

NE5532AP

Texas Instruments DIP8

OP07N

DIP-8 Operational Amplifier

Reference: IC-258

TL082CP

Reference: IC-282

TL072

Reference: IC-265

CA3140

Intersil CA3140 BiMOS Operational Amplifier