The AVMR series offers medium-voltage operation at relatively high pulse repetition frequencies. The AVMR-1 family provides pulses with amplitudes
variable to 5 Volts, and pulse widths variable from 10 ns to 200 ns. The higher-voltage AVMR-2 family provides pulses with amplitudes variable to 20 Volts, and pulse widths variable from 20 ns (10 ns for -B units) to 200 ns. The maximum pulse repetition frequency (PRF) is 10 MHz. The rise time of the computer-controllable -B units is fixed at 300 ps. Instruments with the -B suffix include a complete computer control interface. This provides GPIB and RS-232 computer-control, as well as front panel keypad and adjust knob control of the output pulse parameters. A large backlit LCD displays the output amplitude, frequency, pulse width, and delay.
On all -C and -B models, a delay control and a sync output are provided for
sampling scope triggering purposes. All models can also be triggered externally using a TTL-level pulse. All models are protected from overload conditions (such as excessively high duty cycle or short circuited load) by an automatic control feature that limits the output power for as long as the overload condition exists.
Either output polarity or optional dual output polarity can be provided.
Polarity inversion is accomplished by means of a front-panel two-position switch. All models include an output DC offset or bias insertion function. The required DC
offset or bias is applied directly to rear panel solder terminals.