Up for sale is a Grass Instrument Co. P55 A.C. Pre-Amplifier unit, model/part number P55C.  We installed a 9V battery (not included) in the unit, and the green power light lit up when we switched it on.  We have not tested the unit further as we do not have any compatible equipment to connect it to.  We did notice the "INPUT" connector on the back appears to be damaged (see picture #7).  Because of the broken connector and the fact the unit has not been tested beyond powering on, we are listing the unit "For parts or not working" and it is being sold as-is with no returns accepted.

Cosmetically, the unit does show some signs of use and wear such as scratches and scuff marks and dirt/dust.

Requires one 9V battery (not included).

Terms and Information

Payment: eBay supports a variety of payment methods which are in the Payments section of this listing and in eBay's help pages.

Shipping: Items will be shipped via the services specified in the Shipping section of the listing.  "Economy shipping" items may be shipped via either USPS, UPS, or FedEx at our discretion.  If you would like us to use a specific carrier or service for your order, please contact us before purchasing - we are happy to accommodate requests for specific shipping carriers or services, but please note that there may be an additional charge for using a specific carrier or service.  We also offer free local pickup in Christiansburg, VA for any item (please contact us to arrange if you would like to pick up locally).

Returns: Sorry, we do not offer returns on this item.