The -hp- Model 214A Pulse Generator is a versatile instrument providing variable repetition rate, variable width, variable amplitude, positive or negative, pulses with a rise and fall time of less than 16 nanoseconds. The complete specific-tlons are given in Table 1-1. Pulse power of up to 200 watts is available when using a 50-ohm load.The Model 214A output Impedance matches an external system of 50 ohms on all ranges of 50 volts amplitude and below, thus minimizing reflections.