Knight Model KN-611 Mono Integrated Amplifier. The amp uses EL-84 output tubes. The amp was recently acquired from its long time owner. I powered the amp up using a variable autoformer. It came up fine with no excessive current draw. I injected an audio signal in the inputs and it sounded very good. Nevertheless, it appears to have all original capacitors and other components so you will likely want to replace old capacitors and perform a general service. All tubes except rectifier are labeled "Grommes." They all appear to be original. It will make someone a nice amp with a little service work. Sold as-is. Buyer pays shipping in CONUS.