Sparkfun's EL Escudo Dos breakout board uses this circuit for an EL wire driver channel, with R2 = R3 = 330.
I was wondering what the function of R2 and R3 is? Are they required? What would happen if they were simply replaced with a short?
EDIT: additional info
The HV lines are 110VAC and the channel will be driving EL tape (I think resistive and capacitive load?)