On Mon, 26 Feb 2007 21:38:24 GMT, james wrote
in :


snip
I still like depletion mode MOSFETs as they operate more like vaccum
tubes than bipolar transistor do. Ever tried a common gate depletion
mode MOSFET amp in any RF AMP?


With a JFET, not a MOSFET. I'll bet it's as sensitive as a gay
attorney watching a Snicker's commercial. It sounds a bit scary
though..... maybe if it's DC coupled to a bipolar 2nd stage? However
it's used it would definately need some sort of protection that
doesn't contribute to noise. And imagine the possibilities using a
dual-gate MOSFET (too bad they don't make them anymore).