It is 2 uS per division. I suspect the strobe power supply rings a bit and the alligator clip leads certainly do at those frequencies. Then there are also reflections of the bench and misc. stuff on it.
(I read it as 500 nS of light.)
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Trigger is on the rising edge. High pass at 20 Hz. ish single pole.
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My strobe is dumping a 100 uF/350 volt capacitor into the new flash tube. So I probably have at least 10 times the light you used. My LED was a red diffused type but had to be pointed at the tube to get maximum output. Range about 4".
Now my scope has really nice triggering and capture algorithms. So I can look at a single burst.
So now the issue is how does this vary among LEDs?
Also what is the frequency response of your sound system? I'll grant you can hear hum at normal levels.
Had one lying around waiting to be turned in a shop telephone ring indicator and then this popped up. So under 5 minutes on my bench to check things out. Just had to see when it was so easy to do.
Mine is a disco-type.
I use a clock radio. Scott always complains bitterly when I make him listen to it.
Well a radio shack disco strobe at 60 bpm would probably be at least 100 times less output per flash than my setup. Even if they used one of the disco standard 110 Watt Second tubes.
As to the clock radio. I believe you. After all real objective testing would measure the entire system before you even start.
In other news, the silence of the ignorant detractors is downright deafening.
https://animpossibleinvention.files.wordpress.com/2015/08/us9115913b1.pdf
http://patft.uspto.gov/netacgi/nph-...9,115,913.PN.&OS=PN/9,115,913&RS=PN/9,115,913
https://animpossibleinvention.files.wordpress.com/2015/08/us9115913b1.pdf
http://patft.uspto.gov/netacgi/nph-...9,115,913.PN.&OS=PN/9,115,913&RS=PN/9,115,913
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I thought ppl actually used heatshrink tubing rather than paint because it's not as messy. (Guess, if necessary, it could be the adhesive type to pinch the top closed.)
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And about 3 or 4 orders of magnitude greater than even a worst-case real world application.
Maybe a case of best not to use a VW LED.
As it happens, I know a few lollipop doctors*.
For some reason, their cars have the exact same exhaust pipes as yours, Mr Colburn.
I've yet to find corroboration for a connection in weekly MIB bulletins.
* one travels by train on days-off, carrying a suitcase with a distinct silicone fragrance.
Harmless, his first name is Randy, but identified as an auto-prober (and lollipopper)
He does have a tendency to forget the suitcase when leaving the carriage.
General warning to the public : do not attempt to open suitcases, left on trains, the contents may be 100 percent extraterrestrial.
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Who has any light brighter than a 100 watt incandescent in a normal room? Unless you are in a disco, do they still have those, with a strobe light, where did that come into the discussion of the susceptibility of an led to be a photo detector in an active forward bias circuit? Let's say you had two or more leds inside of an enclosure why wouldn't you just use a narrow angle dispersion led and have them pointed away from each other, the amount of scattered light would be very low, are we not making something out of another of those audiophile myths here?
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