| repak shawahb | |||||
| a.k.a. gorgeous gergis | |||||
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Wed, 18 Jan 2006 Wow, lots of entries today. After work and a quick dinner (after which Mike managed to spill a soda all over the front seat of my car) a bunch of us headed over to Tim's to watch Underworld—in preparation, of course, for the release of the sequel this Friday. I couldn't sleep when I got home, so I went ahead and made the magnetic shields for the CRT clocks. It seemed like one layer of 6 mil AD-MU-80 (80 Ni/20 Fe) would have been enough, but I went ahead and did two on each just to be certain. Success! I suspected given the magnitude of the distortions I was seeing that the field strength wasn't too great, and it appears that I was right. Now what to do with the 14x60 sheets of 4 mil AD-MU-80 and AD-MU-00 and the remaining 4x36x6 mil... what else needs some shielding? [ permalink | 0 comments (add one you lazy bastard!) ]
maybe it's just the ozone talking...
...but I strongly prefer the nitrogen peroxide that the tweeter is feeding me. I think Marduk still prefers Stimutax, though. Someone ought to give me a helium environment for Christmas so I don't kill myself or something. From an article on tweeter technology by NewForm Research: Think of it as an arc welder driven by an audio signal. No moving parts, therefore no resonances. As fast as the air itself. And now the fatal flaw. The developers left the driver on overnight and returned the next morning to find everything in the room white from the ozone produced by the process. If this tweeter had proved otherwise practical in the early 60's, we would probably all be dead of skin cancer by now. [ permalink | 0 comments (add one you lazy bastard!) ]
random thought before I go to sleep
What if we weren't engineers? We wouldn't be able to dream up stuff and just make it. Mmmm... I love making. And dreaming. 'nite. [ permalink | 0 comments (add one you lazy bastard!) ] It's 1a and I'm still at work. To be sure, I haven't been working for the last several hours—I was just using the wondrous laboratory facilities here to build up the new audio modulator for my plasma tweeter. Success! After adding an LC pi network between the emitter of the output follower and the plasma modulator, the audio section worked perfectly. Good thing we have an assload of high voltage caps and high current inductors around this place—I needed 'em. Even with the filter, when the plasma is running the E fields coming off the stub are strong enough to induce 5Vpp ripple on the 300V supply—which is bypassed with no less than 680 microFarads of bulk capacitance! Admittedly, I do need to add a liberal sprinkling of lower-valued caps whose impedances actually look capacitive above, say, 10 kiloHertz... By the way, do the math on that shit... those caps are storing a lot of energy! Those of you who were around at the time probably remember when I literally VAPORIZED a resistor—leads and all—on the very power supply from which this whole thing runs. ...oh yaah, and measurements indicate that when the flame is about half an inch high, I'm burning about 180 Watts into the 22 MHz carrier. Fuck yeah RF burns, baby. [ permalink | 0 comments (add one you lazy bastard!) ] |
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