Vintage Grass Instruments Lab Equipment: Polygraph 1DAG DC Amplifier & 7P1G Pre-

Grass Instruments LM4 Lesion Maker

Grass Medical SD 5 Stimulator

Grass Instruments SIU5B Stimulus Isolation Unit and CCU1A Constant Current Unit

Vintage Bobbitt Laboratories No 500 Pulse Stimulator Lab Electronics Device

Grass 7DAL Polygraph DC Driver Amplifier 7P8J Sphygmomanometer EKG-Pulse Pre Amp

Kangaroo 60ENY Extension Set (50pc) 10/31/2026