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Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=74091&th=17800#msg_74091
tube small enough to use on a circuit board. There's not much information here, but it's an interesting thought.]]>Nymeria2012-10-09T16:40:38-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=74093&th=17800#msg_74093
That's seriously interesting! Thanks for the link.
As a humorous aside, for my birthday one year, an electronics mentor gave me a chip glued to the anode cap on top of a tube. He made a little label for it that read "microprocessor controlled tube", just as a joke. It was meant to be ridiculous, like putting a supercharger on a horse-drawn carriage.
But as the years passed, and we've seen a resurgence of vacuum tubes in audio circuits, I've often thought of that. With digital sources driving tube amplifiers, we now really do have lots of examples of microprocessor controlled tubes. And this link shows even more advancements in this area.
]]>Wayne Parham2012-10-09T18:29:33-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=74098&th=17800#msg_74098
The thermal load would force it to be immersed in liquid nitrogen. I see no reason why micro tubes on a chip could not be made. There are a number of tubes that are quite small now, so with technological advances since the "peanut" tube's heyday I can envision one an order of magnitude smaller. Be great for very high frequency and switching applications. For audio maybe, maybe not so great. Still a very interesting topic.
]]>gofar992012-10-10T02:12:38-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=74107&th=17800#msg_74107
Bruce, I don't have much knowledge in this area, so I don't know; why do you think it'd only be good for very high frequencies?]]>Nymeria2012-10-10T18:15:08-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=74165&th=17800#msg_74165
http://en.wikipedia.org/wiki/Nuvistor
I remember seeing these in college, but I *had* to have been in a history class.
Chris]]>chrisR2012-10-18T16:04:00-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=74166&th=17800#msg_74166
Another very interesting link, thanks!
]]>Wayne Parham2012-10-18T20:01:20-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=86074&th=17800#msg_86074
WorkingWoman20172017-09-06T21:50:24-00:00Re: Tube on a Chip?
https://audioroundtable.com/forum/index.phpindex.php?t=rview&goto=86188&th=17800#msg_86188
Ziggy2017-09-24T04:03:49-00:00