Tom,
Understood but the heavy mosfet device needs higher operating current to get over the high input
and output C.??For the driver its a maybe, but you need to heatsink it as its going to run at 100-250ma
for IMD and gain.? IRF510 at 50ma is still asleep.
A BS170 or 2n7000 (pair) will do a watt push pull, and that is what we need.??
It would be like using a 2n3055 (15 amp TO3) for an audio preamp!??
Allison