Andrew Lentvorski wrote: > Paul G. Allen wrote: > >> Now I have to ask (because you guys got me thinking): >> >> How many people on this list, or that folks on this list know of, have >> ever designed a circuit using tubes, or know anything about tubes? It >> sounds like analog may not be taught much or well these days, let >> alone anything about tubes. > > I've used them a couple times. Very rarely though. > > A MOSFET is approximately equivalent to a triode tube since both > modulate the current flow with an applied voltage. > > The big thing is that a tube is *not* approximately equivalent to a > bipolar. Bipolar transistors modulate current flow with current flow. > > I'd rather have MOSFET's than tubes.
Is it not true that tubes are still the kings in the (ultra-) high power arena -- eg rf transmitters. If so, will it likely remain that way for awhile? ..jim -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
