The PA200-10 is to be used in close conjunction with Photek detectors to amplify the timing pulses for connection by a 50 ohm cable to oscilloscopes or other fast timing electronics. The output from this unit is a voltage-amplified version of the input pulse. Pulses below 1.25ns will be temporally stretched to approximately twice their length i.e. a 1 ns pulse input will be a 2 ns pulse output. The amplification ratio is a minimum of 20db, i.e. gain of 10.