This is a replica of a Dr Z Brake Lite attenuator, built here in town by a very skilled electronics tech friend. The Dr Z original item would cost over $300 CDN, and this clone has basically all the same components and does the exact same job. It is brand new and does a great job of attenuating tube amps up to 45 watts. Anyone interested can come over here with their amp, or use one of my amps, to see how well it works. Not looking for any trades.