The MSK 1911 features differential inputs and a linearly adjustable gain stage with an output offset adjustment which allows it to be a versatile performer well suited for many applications. A TTL level blanking input is available to set the output to a predetermined black level independent of signal input. The MSK 1911 is packaged in a cost effective, highly thermally conductive, insulated package which can be bolted directly to a heat sink for efficient thermal management.