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The power cable it's cut off. Unit for parts The Grass Instruments Polygraph DC Driver Amplifier P511 is a specialized pre-amplifier designed for use in medical and lab equipment. This product, part of the Grass Instruments brand, is known for its quality and reliability in providing accurate and clear signals for various testing and monitoring purposes. With its AC capabilities, this amplifier is essential for conducting precise tests and experiments in research settings and healthcare applications.

Grass 7P1G Pre Amplifier & 7DAG Driver(0-0-0) RP We are very pleased to offer here this Grass polygraph equipment in good working condition. This equipment was recently purchased from a local government facility which was removing excess, working polygraph equipment. Good working condition showing few signs of previous use We pack carefully and ship promptly! We are pleased to offer a 30 day warranty on this item! FedEx Ground Shipping Map THANK YOU For considering our item! We have been selling on ebay for over 15 years! Bid With Confidence!

The Grass Instrument P15 A.C. Preamplifier with RPS 112 Regulated Power Supply is a high-quality equipment designed for medical and lab applications. Made by Grass Instruments, a reputable brand in the industry, this preamplifier and power supply combination is reliable and precise. The RPS-212B Power Supply ensures stable and regulated power, making it an essential component for various devices in the medical and lab setting. This product is a valuable addition to any facility in need of accurate and efficient equipment.

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