High voltage activation (~ kv1.2? kv1.3?) potassium channels, written by jz simon. Core code taken from hines & carnivale 2000 with added variables. Klva and khva are identical except for suffix and defaults in parameter. Params and functions taken from rathouz & trussel 1998. No apparent modeldb ancestors. Modeling study of the avian auditory brainstem. No mention of other specifics related to the animal model.