Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
Hi Malcolm,
HI Terry, ..............
You asked about a model for Rp. Scope photos of single shot gap events clearly show it is dynamic current-dependent quantity (the linear ringdown). I have never liked the idea of using a fixed resistance in place of it and have seen nothing to make me change my mind. Without delving into it further the dynamic resistance is inversely proportional to current, possibly to some power. Sorry I can't help more at the moment.
Malcolm
Cheers,
Terry