jonathan d p ferguson wrote: > Anthony: > > You actually built an electrostatic speaker? How big was this? Door > size? :) > I started on such a project but DNF, so, many Kudos! The dream lives on!
Probably a dozen of them anyway. I tend to jump into things with both feet. I had best luck with narrower specimens, like 6" or a little wider (but full hight), there are a bunch of trade-offs, I discovered. I got to the point where I wanted to build high voltage amplifiers (to do away with badly insulated audio transformers), but never took that step. I'm sure today's MOSFETs would be good/better for that. There is actually an ironic story here, which I will bore you with in the next paragraph. I was working in the plasma display laboratory at the time, and so theoretically had access to expertise in that area of high voltage amplifiers, but the real principal (Dr. Waren) who really knew that stuff had already left to start Plasmaco, and the early '90's recession shutdown the lab. I switched horses (for my masters thesis) to a music synthesizer project that I was doing for fun, and managed to snag the Bitzer/Slottow Award for it. Here comes the irony: that award is named for Waren's mentors, who invented the plasma display. I don't think I really put that together until today. > Also, while we're on the radio topic, any other Amateur Radio operators > lurking around on this list? I have a license, but mostly I just got pressured into taking the test when I went along to a ham fest with a friend (I passed), so I'd hesitate to call myself an operator. And anyway, politically I'm against licensing the radio spectrum, and in favor restricting the FCC to regulate power only (with no special exemption for any party). There should be no restriction on the use of spectrum or modulation, except for safety. Licensing channels is sooooo 1920, but it is a convenient fiction for monopolists. That change, and also eliminating patent, would revolutionize our culture and economy (in a good way). -- Anthony Carrico
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