Check the listing for details. Amplifier Research Operator Interface Control Panel 3500A100M1 3500A Surplus. Condition: Used. Listed at 1807.23 USD. Amplifier Research Operator Interface Control Panel 3500A100M1 3500A Surplus Model No: Operator Interface Removed from a Amplifier Research 3500A100M1 Solid-State Amplifier Sold As-Is Installed Components PCB Part No: 06C2302 This Amplifier Research Operator Interface Control Panel is used working surplus. The unit Display and navigation black button covers are missing, the buttons still toggle when pressed (see photos). The physical condition is good, but there are signs of previous use and handling. Sale Details Item Condition: Used Working, 90 Day Warranty Estimated Packed Shipping Dimensions: L x W x H = 20"x20"x20" @ 15 lbs. Shipping Terms: All Domestic and International shipping quotes and/or fees are subject to change due to packaging requirements, custom packing, transport rate fluctuations, and supply chain demands. We will contact you regarding any shipments that require or incur additional after purchase packing fees or rate changes. Only items pictured are included: If a part is not pictured, or mentioned above, then it is not included in the sale. Pictured test equipment is not included or available for sale. For items with multiple quantities: The pictured item is not necessarily the one that will be sent. Serial numbers or country of manufacture may vary. Items are sold with a 90-Day Satisfaction Guarantee Lister 31