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From: Dave McGuire <mcguire at neurotica.com> On 09/27/2012 11:47 AM, Chris Tofu wrote: ? So if something is home-made, it's "old world"?? No. C: In a manner of speaking. Whether it's homemade or commercially made in this case there isn't much difference. If a person were to say build a lathe, even if it was from castings (far more difficult to melt iron then whatever she's heating in her unit/s), it's kind of old world - that's how they did it 100-400 years ago. If a manufacturer were to market a lathe, using the latest alloys, finite element analysis, etc. etc., it ain't old world anymore. ? Further, there's a commercial furnace on her workbench in those photos.? There's very little that's home-made there. (except her chips of course) C: I'd have to look. If it has newer bells and whistles, current monitoring, pyrometer, etc., ok it's no longer old world. But the guts of the furnace still are likely, unless it was made of fancy Ytong blocks or something. ? She HAS broken new ground...she's made transistors and integrated circuits in a home lab.? As far as breaking new ground in semiconductor physics, well, that's not the goal.? Even she doesn't have enough funding for that. C: So her methods are all that different from the way the first experimental transistors or fets were made? Something tells me no. Being that this knowledge has been around for a long time, it's hard to see how she's breaking ground. It's still a transistor after all. ?These "kids" coming up with, in a manner of speaking only, innovation, is fantastic. I'm not knocking it. But is it really new at all? ? ? ? ? ? ? -Dave -- Dave McGuire, AK4HZ New Kensington, PA