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What light through yonder window breaks?

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Max The Magnificent
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re: What light through yonder window breaks?
Max The Magnificent   2/11/2013 9:54:24 PM
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My first stop will be Mock Electronics on the way into work tomorrow (I didn't make it today)

Max The Magnificent
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re: What light through yonder window breaks?
Max The Magnificent   2/11/2013 9:56:23 PM
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Hi Rick -- that would be wonderful -- also my Chum Alvin suggested sanding the outside of the LED because this would diffuse the light -- and also maybe putting a blog of silver / reflecting paint right on the tip of the LED to block the intense point source...

Max The Magnificent
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re: What light through yonder window breaks?
Max The Magnificent   2/11/2013 9:59:57 PM
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I don't know why, but I'd simply never thought of using PWM to control an incandescent bulb -- I was thinking that the bulb wouldn't be fast enough to respond, but at the end of the day a PWM ration of 1:1 (for example) equates to 50% of the power... I thought of adding an old meter (I have a bunch here in the office) but you couldn't see it in a large room -- which is also why I decided to leave out the geared clock -- but I think it will look great just the way it is (once I've got the lights working :-)

ndancer01
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re: What light through yonder window breaks?
ndancer01   2/11/2013 10:23:23 PM
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The ultimate machine, of course, is something about the size and shape of a cigar box with one switch on the front. When you throw the switch, there's an angry buzzing inside, and a few seconds later, this mannequin hand 'ratchets' out, and turns off the switch. Then the hand pops back inside, the lid closes, and the buzzing stops. This is the ultimate machine--almost human. The only thing it does, is turn itself off.

ndancer01
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re: What light through yonder window breaks?
ndancer01   2/11/2013 10:25:08 PM
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I believe it was invented by Claude Shannon

ndancer01
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re: What light through yonder window breaks?
ndancer01   2/11/2013 10:30:53 PM
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When I was at Boeing, there was a rumor going around that there was a box for the uninitiated. It was welded metal and had one button--and a sign that said, "Do not press this button." It generally sat there for less than half an hour before somebody pressed it. Contents? A battery, a latching relay, and a klaxon. In that metal box, it was loud. I was told that more than one went into the Duwamish River (which ran close to the plant).

David Ashton
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re: What light through yonder window breaks?
David Ashton   2/11/2013 11:05:28 PM
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Lamps (because of their coiled filaments) are a bit inductive, so if you PWM them at a very high frequency you just might get strange things happening. But anything in the KHz region shouldn't worry them. They are after all usually fed with 50/60 Hz...anything above that you shouldn't get any flicker. I once used an auto bulb as an RF dummy load. At 40 MHZ it was quite good, but at 80 MHz it needed a trimmer cap across it to null out the inductance. Cheaper than buying s proper load.

Max The Magnificent
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re: What light through yonder window breaks?
Max The Magnificent   2/11/2013 11:10:13 PM
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I think it's called a "Useless Machine" ... I have one sitting here on my desk

Max The Magnificent
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re: What light through yonder window breaks?
Max The Magnificent   2/11/2013 11:11:03 PM
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LOL

E-Unit
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re: What light through yonder window breaks?
E-Unit   2/13/2013 8:38:36 AM
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Your switches look like "Kellog Keys", they were standard telephone switches here in the UK until the "Ericcson Keys" came along. The BBC (Our national radio) had an AEI (I think!) built control room from the early 60's which htey ripped out in the 90's. It had hundreds of these, some of which were never even used. I think they were replaced by the flimsier Ericcsons shortly after. For Lamps, you can drive bulbs or LEDs from the old ULN200* family ("ULN2003" suits TTL) which will take PWM etc. And yes, bulbs will integrate the pulses mech better than LED's, especially for migraine sufferers!

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