The models in the AV-1010, AV-1011 and AV-1015 series are general-purpose +/-50V and +/-100V pulse generators which, depending on the exact model, can generate pulse widths as narrow as 20 ns or as wide as 10 ms. Model AV-1010-B is very similar to the AV-1011-B, except that it operates over an extended pulse width range of 25 ns to 10 ms.