The instruments in the Avtech AVB2 series of high-voltage monocycle generators provide peak-to-peak outputs of 200 or 400 Volts for frequencies in the range of 10 to 200 MHz. The AVB2-TD series offers an adjustable center frequency of 10 to 50 MHz, with a peak-to-peak amplitude variable from 0 to 200V. The -C versions provide output pulse parameters similar to those of the -B models, but do not include the GPIB or RS- 232 interfaces or LCD display. The output parameters are controlled by front-panel range switches and one-turn vernier controls.