The AVIR series is designed for 200V applications requiring pulse widths from 2 to 1000 ns, at repetition rates up to 50 kHz. The AVIR-4 family essentially combines the AVIR-2 and AVIR-3 technologies to offer pulse widths from 4 to 200 ns, in two ranges (4 to 10 ns, and 10 to 200 ns). Instruments with the -B suffix include a complete computer control interface.