Used Amplifiers in Virginia, USA

Grass AC Pre-Amplifier, Model P511K

Grass AC Pre-Amplifier, Model P511J

Transonic Systems Pulse Amplifier, Model 59

Mettler Electrode Amplifier, Model Dk-10

• Manufacturer: Mettler - Toledo

DK10

Grass AC/DC Strain Gage Amplifier, Model P122A

Grass 79D with P511 Amplifier Plug-ins

Grass DC Amplifier, Model P16

Grass Micro Electrode DC Amplifier, Model P16D

Grass AC Pre-Amplifier & Integrator, Model 7P3C

Grass Polygraph DC Amplifier, Model 7DAG

• Manufacturer: Polygraph

Grass AC Pre-Amplifier, Model P511H

Grass Polygraph DC Driver Amplifier, Model 7DAH

• Manufacturer: Polygraph

Grass Low Level DC Pre-Amplifier, Model 7P1FL

Grass Low Level D.C. Amplifier, Model 7P122D

Grass EEG Amplifier, Model 7P511J