The AVRH series of pulse generators consists of three basic models providing output amplitudes in the range of 2000 to 3000 Volts into high impedance loads. Model AVRH-3-B provides up to 3000 Volts out (to R 10 k) with rise and fall times of 100 ns and pulse widths variable from 200 ns to 2.5 us. The pulse repetition frequency (PRF) is variable from 0 to 1.0 kHz, with a 0.25% duty cycle limit. Model AVRH-2-B is similar but provides a maximum output of 2000 Volts (to R 10 k) with a rise time of 80 ns. The pulse width is variable from 200 ns to 2.5 us, and the pulse repetition frequency is variable from 1 Hz to 1 kHz.