Dave Platt wrote:

In this particular application - pass transistors in a linear
regulator - I don't see that MOSFETs would have any particular
advantage.
. . .

Someone mentioned the 2 to 4 amps of base current you'd have to supply
for bipolar pass transistors. You wouldn't need it if you used FETs. I'd
look seriously at P-channel VMOS for pass devices, myself.

Roy Lewallen, W7EL