An unusual Oscilloscope phenomenon

Fireworks are usually silly here. Fizz, boom, a dull flash of color in the fog.

The fire was awesome. From Diamond Heights, looking across the bay, it looked like the whole east side was on fire. Above the Clairemont Hotel was a huge ball of fire with a black center... it looked like the Gates of Hell.

John

[....]

I bet you say that to all the boys/gals :)

Because the doctor said I couldn't drink beer anymore?

When I was a lad, we called that color "Nipple Pink"

;-)

-- "Electricity is of two kinds, positive and negative. The difference is, I presume, that one comes a little more expensive, but is more durable; the other is a cheaper thing, but the moths get into it." (Stephen Leacock)

Thats not very PC Fred. These days we don't have nipples we have pediatric sustenance dispensers.

I do. When teaching woodworking.

--
You can\'t have a sense of humor, if you have no sense!

Must have been a long time ago, before they switched to latex based paint;-)

--
You can\'t have a sense of humor, if you have no sense!

Or go 1/2 wave and save the extra schottky?

--
Grins,
James

Interesting. I was intrigued by this just last month and meant to look into it:

Fein:

--
Cheers,
James Arthur

my

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rnatezone.com/eevblog/

His schematic of the scope probe and scope input are oversimplified to the point of incorrectness. Also, he ignored the low-pass nature of the oscilloscope input, which might contribute to the clean "sinusoidal" waveform.

Oh come on, there's a huge reservoir up there.

I am amazed by the DIY fireworks at Dolores Park. Much more fun than the official shows.

Yeah, less voltage drop, unless voltage doubling would be better for the led. Sounds like fun. My best candidates seem to be around 101 and

880 MHz, each about -35 dBm from a banana lead antanna into the spectrum analyzer.

Fairly recently we got a good spectrum analyzer and a thermal infrared imager. I don't know how I ever lived without them.

John

Well, I got meeself a lass and married her so I can't say that never no more :-)

--
Regards, Joerg

http://www.analogconsultants.com/

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There's an enormous pink triangle on the side of Twin Peaks today. Mo calls it "the thong."

It's Gay Freedom Day, ground zero about 3 blocks away.

John

Which loss method? It grew legs and walked away or pop ... *BAM* ... "Whoops, sorry, guess I must've left it on amps"?

--
Regards, Joerg

http://www.analogconsultants.com/

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We had this here, yesterday (photo is from last year though), top view from a friend's deck:

--
Regards, Joerg

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I used to live on 16th street, across from the mission, when the area was still a real dump, and cheap... a 3 room flat for $315. Now the whole area has gotten trendy and expensive, and Dolores Park is a weekend flesh market. Cool.

Been to The Monk's Kettle? That have 20 exotic beers on tap and make a different pot pie every day.

But Joseph Schmitt will be shut down soon. Boycott Hershey's!

John

he

The road can't handle much traffic unles things have changed. I haven't brought a car to SF in a few years. Too much hassle. I do recall the official fireworks being more like an "impressionistic" painting.

One of the better 4th of July displays I saw was in Las Vegas. I was at the Paradise Hilton. From the parking garage, you could see their fireworks and displays all around town. The top level was packed with people, so I guess this is a common way to watch the events. I'm sure the Stratosphere is packed for the 4th.

My

If the Q is high enough you may be able to just use the LED directly.