On Thu, 18 Nov 2004 09:04:38 +0000 (GMT), Jim Lesurf
wrote:

In article , Don Pearce
wrote:
On Wed, 17 Nov 2004 19:39:16 +0000, Kurt Hamster wrote:


As I said, you can waffle as much as you like. Transistor technology is
57 years old, any new advances are still based on old technology.

To use your analogy then doesn't that preclude, $DEITY forbid, someone
using valves on a state of the art computer motherboard?


So your position is that transistors now are the same as transistors 57
years ago - there is no current state of the art. You are entirely
clueless.

Valves, on the other hand, are exactly like they were 57 years ago -
there have been no advances and the state of their art is far from
current.

I am not quite sure how:

A) multiple field emitters, polotrons, and various other vacuum-state
devices.

B) high mobility / ballistic or quantum well/dot or multiple barried SS
devices.

fit into the above picture. My understanding is that they have been
developed during the last couple of decades, and in some cases required new
understanding of the relevant physics and/or novel fabrication methods.

Don't know if any of them have been used in audio, though. :-)

I think that last sentence sums up the position of valves in the
mainstream. And are your B) devices products of valve research or
solid state research?

d
Pearce Consulting
http://www.pearce.uk.com