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some gear

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  some gear John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-16 16:52 -0700
    Re: some gear DaveC <not@home.cow> - 2016-03-16 22:35 -0700
      Re: some gear John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-17 08:43 -0700
    Re: some gear "nuny@bid.nes" <Alien8752@gmail.com> - 2016-03-17 00:30 -0700
      Re: some gear John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-17 10:18 -0700
        Re: some gear DaveC <not@home.cow> - 2016-03-17 10:46 -0700
      Re: some gear Cydrome Leader <presence@MUNGEpanix.com> - 2016-03-17 21:34 +0000
    Re: some gear mrdarrett@gmail.com - 2016-03-17 10:30 -0700
    Re: some gear The Hemulen <hemulen@moomin-valley.fi> - 2016-03-18 10:22 +0000
      Re: some gear John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-18 09:06 -0700
        Re: some gear Lasse Langwadt Christensen <langwadt@fonz.dk> - 2016-03-18 09:14 -0700
          Re: some gear John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-18 20:22 -0700
            Re: some gear dagmargoodboat@yahoo.com - 2016-03-19 10:41 -0700
        Re: some gear bitrex <bitrex@de.lete.earthlink.net> - 2016-03-18 14:56 -0400
        Re: some gear George Herold <gherold@teachspin.com> - 2016-03-18 20:02 -0700
        Re: some gear "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2016-03-19 12:10 -0400
          Re: some gear John Larkin <jjlarkin@highlandtechnology.com> - 2016-03-19 10:20 -0700
            Re: some gear DaveC <not@home.cow> - 2016-03-19 14:38 -0700
            Re: some gear rickman <gnuarm@gmail.com> - 2016-03-19 18:36 -0400
    Re: some gear bitrex <bitrex@de.lete.earthlink.net> - 2016-03-18 07:15 -0400
      Re: some gear mixed nuts <melopsitticus@undulatus.budgie> - 2016-03-18 10:16 -0400

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#403148 — some gear

Just found this online.

https://www.flickr.com/photos/llnl/3501671601

It's the Master Oscillator Room for the NIF laser fusion facility. It
ggenerates the 192 shaped fiberoptic pulses that get amplified to
free-space megajoule level to whack the hydrogen pellet in the target
chamber.

https://www.flickr.com/photos/llnl/3421902499/in/photostream/

The black rackmount boxes with the circular fan grilles are our
fiberoptic arbitrary waveform generators.


-- 

John Larkin         Highland Technology, Inc
picosecond timing   precision measurement 

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

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#403190

> https://www.flickr.com/photos/llnl/3501671601

What, no graybeards? What’s the world coming to?
> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
> 
> The black rackmount boxes with the circular fan grilles are our
> fiberoptic arbitrary waveform generators.

3rd row, lower middle? (Hard to make out any detail...)

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#403226

On Wed, 16 Mar 2016 22:35:52 -0700, DaveC <not@home.cow> wrote:

>> https://www.flickr.com/photos/llnl/3501671601
>
>What, no graybeards? What’s the world coming to?
>> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
>> 
>> The black rackmount boxes with the circular fan grilles are our
>> fiberoptic arbitrary waveform generators.
>
>3rd row, lower middle? (Hard to make out any detail...)

You can see about 15 of our boxes in that pic. There are actually 48
in the racks, one for every 4 beam lines. There were going to be 192
ARBs, but some cheap SOB figured out they they could get by with 1/4
as many.

These units also show two or three vertically-arranged yellow LEDs in
that photo. That's weird, because 3 of 4 of the real LEDs are green.
Photos often show LEDs as the wrong color.

Here's the box:

https://dl.dropboxusercontent.com/u/53724080/Gear/NIF_Timing/T400_front.jpg

https://dl.dropboxusercontent.com/u/53724080/Gear/NIF_Timing/Chassis.gif

The thing on the platform is a dual-stage lithium niobate optical
modulator. We drive that to make the shaped optical waveform that
whacks the target.

Geez, I've done so many weird things so far.



-- 

John Larkin         Highland Technology, Inc

lunatic fringe electronics 

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#403203

On Wednesday, March 16, 2016 at 4:52:55 PM UTC-7, John Larkin wrote:
> Just found this online.
> 
> https://www.flickr.com/photos/llnl/3501671601
> 
> It's the Master Oscillator Room for the NIF laser fusion facility. It
> ggenerates the 192 shaped fiberoptic pulses that get amplified to
> free-space megajoule level to whack the hydrogen pellet in the target
> chamber.
> 
> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
> 
> The black rackmount boxes with the circular fan grilles are our
> fiberoptic arbitrary waveform generators.

  Nice toys. ;>)

  One thing bugs me though- why do such scenes have to be lit with contrasting colors from different angles? Yours aren't as extreme as some I used to see in Sci Am or EDN or other old dead tree magazines, but still.


  Mark L. Fergerson

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#403242

On Thu, 17 Mar 2016 00:30:27 -0700 (PDT), "nuny@bid.nes"
<Alien8752@gmail.com> wrote:

>On Wednesday, March 16, 2016 at 4:52:55 PM UTC-7, John Larkin wrote:
>> Just found this online.
>> 
>> https://www.flickr.com/photos/llnl/3501671601
>> 
>> It's the Master Oscillator Room for the NIF laser fusion facility. It
>> ggenerates the 192 shaped fiberoptic pulses that get amplified to
>> free-space megajoule level to whack the hydrogen pellet in the target
>> chamber.
>> 
>> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
>> 
>> The black rackmount boxes with the circular fan grilles are our
>> fiberoptic arbitrary waveform generators.
>
>  Nice toys. ;>)
>
>  One thing bugs me though- why do such scenes have to be lit with contrasting colors from different angles? Yours aren't as extreme as some I used to see in Sci Am or EDN or other old dead tree magazines, but still.
>
>
>  Mark L. Fergerson

When you over-run by a few billion dollars, you need flashy PR.


-- 

John Larkin         Highland Technology, Inc
picosecond timing   precision measurement 

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

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#403248

> > One thing bugs me though- why do such scenes have to be lit with
> > contrasting colors from different angles? Yours aren't as extreme as some I
> > used to see in Sci Am or EDN or other old dead tree magazines, but still.


> When you over-run by a few billion dollars, you need flashy PR.


It’s so... 80’s. Whether it’s a LLNL stock photo or taken by a 
magazine, it’s like the photog (or editor, at the photog’s elbow) was 
holding an 80’s EDN issue in-hand, saying “I think we need a bit more 
green...”.

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#403267

nuny@bid.nes <Alien8752@gmail.com> wrote:
> On Wednesday, March 16, 2016 at 4:52:55 PM UTC-7, John Larkin wrote:
>> Just found this online.
>> 
>> https://www.flickr.com/photos/llnl/3501671601
>> 
>> It's the Master Oscillator Room for the NIF laser fusion facility. It
>> ggenerates the 192 shaped fiberoptic pulses that get amplified to
>> free-space megajoule level to whack the hydrogen pellet in the target
>> chamber.
>> 
>> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
>> 
>> The black rackmount boxes with the circular fan grilles are our
>> fiberoptic arbitrary waveform generators.
> 
>   Nice toys. ;>)
> 
>   One thing bugs me though- why do such scenes have to be lit with contrasting colors from different angles? Yours aren't as extreme as some I used to see in Sci Am or EDN or other old dead tree magazines, but still.

You don't associate 1990s lighting with Hi-Tek?

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#403244

On Wednesday, March 16, 2016 at 4:52:55 PM UTC-7, John Larkin wrote:
> Just found this online.
> 
> https://www.flickr.com/photos/llnl/3501671601
> 
> It's the Master Oscillator Room for the NIF laser fusion facility. It
> ggenerates the 192 shaped fiberoptic pulses that get amplified to
> free-space megajoule level to whack the hydrogen pellet in the target
> chamber.
> 
> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
> 
> The black rackmount boxes with the circular fan grilles are our
> fiberoptic arbitrary waveform generators.
> 
> 
> -- 
> 
> John Larkin         Highland Technology, Inc
> picosecond timing   precision measurement 
> 
> jlarkin att highlandtechnology dott com
> http://www.highlandtechnology.com


That second picture... Oh.  My.  Goodness.  Lockout, Tagout!

Michael

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#403325

On 16/03/2016 23:52, John Larkin wrote:
> Just found this online.
>
> https://www.flickr.com/photos/llnl/3501671601
>
Don't you just love those staged photo's?!  I used to dread companies I 
worked at having the press in as they would always end up wanting 
photo's or video of 'something technical looking'.  One especially 
annoying photographer wasn't happy with the square pulse images on the 
screen so a quick play with two sig gens and x-y inputs on the scope 
gave him some Space 1999 style lissajous figures on screen.  He nearly 
wet himself with joy.
Anyone 'in the know' would have realised the scope image had nothing to 
do with the digital board in front of me and the really eagle eyed would 
have noticed that the scope probe I was holding while looking intently 
at the scope was no longer even connected having connected a BNC lead in 
its place.  Fun times.

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#403347

On Fri, 18 Mar 2016 10:22:55 +0000, The Hemulen
<hemulen@moomin-valley.fi> wrote:

>On 16/03/2016 23:52, John Larkin wrote:
>> Just found this online.
>>
>> https://www.flickr.com/photos/llnl/3501671601
>>
>Don't you just love those staged photo's?!  I used to dread companies I 
>worked at having the press in as they would always end up wanting 
>photo's or video of 'something technical looking'.  One especially 
>annoying photographer wasn't happy with the square pulse images on the 
>screen so a quick play with two sig gens and x-y inputs on the scope 
>gave him some Space 1999 style lissajous figures on screen.  He nearly 
>wet himself with joy.
>Anyone 'in the know' would have realised the scope image had nothing to 
>do with the digital board in front of me and the really eagle eyed would 
>have noticed that the scope probe I was holding while looking intently 
>at the scope was no longer even connected having connected a BNC lead in 
>its place.  Fun times.

The press loves old gear: tape decks, round-tube oscilloscopes, things
with meters and knobs. And the people in the pics are always
"examinimg" or "inspecting" "contraptions." What can you expect from
journalism majors?

Even the tech mags like photos of thru-hole parts on boards.

It's funny when artsy types fake PCB layout patterns.


-- 

John Larkin         Highland Technology, Inc

lunatic fringe electronics 

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#403350

Den fredag den 18. marts 2016 kl. 17.06.53 UTC+1 skrev John Larkin:
> On Fri, 18 Mar 2016 10:22:55 +0000, The Hemulen
> <hemulen@moomin-valley.fi> wrote:
> 
> >On 16/03/2016 23:52, John Larkin wrote:
> >> Just found this online.
> >>
> >> https://www.flickr.com/photos/llnl/3501671601
> >>
> >Don't you just love those staged photo's?!  I used to dread companies I 
> >worked at having the press in as they would always end up wanting 
> >photo's or video of 'something technical looking'.  One especially 
> >annoying photographer wasn't happy with the square pulse images on the 
> >screen so a quick play with two sig gens and x-y inputs on the scope 
> >gave him some Space 1999 style lissajous figures on screen.  He nearly 
> >wet himself with joy.
> >Anyone 'in the know' would have realised the scope image had nothing to 
> >do with the digital board in front of me and the really eagle eyed would 
> >have noticed that the scope probe I was holding while looking intently 
> >at the scope was no longer even connected having connected a BNC lead in 
> >its place.  Fun times.
> 
> The press loves old gear: tape decks, round-tube oscilloscopes, things
> with meters and knobs. And the people in the pics are always
> "examinimg" or "inspecting" "contraptions." What can you expect from
> journalism majors?
> 
> Even the tech mags like photos of thru-hole parts on boards.
> 
> It's funny when artsy types fake PCB layout patterns.
> 

http://www.thepoke.co.uk/2016/03/09/soldering-stock-photo-fail/

-Lasse

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#403435

On Fri, 18 Mar 2016 09:14:43 -0700 (PDT), Lasse Langwadt Christensen
<langwadt@fonz.dk> wrote:

>Den fredag den 18. marts 2016 kl. 17.06.53 UTC+1 skrev John Larkin:
>> On Fri, 18 Mar 2016 10:22:55 +0000, The Hemulen
>> <hemulen@moomin-valley.fi> wrote:
>> 
>> >On 16/03/2016 23:52, John Larkin wrote:
>> >> Just found this online.
>> >>
>> >> https://www.flickr.com/photos/llnl/3501671601
>> >>
>> >Don't you just love those staged photo's?!  I used to dread companies I 
>> >worked at having the press in as they would always end up wanting 
>> >photo's or video of 'something technical looking'.  One especially 
>> >annoying photographer wasn't happy with the square pulse images on the 
>> >screen so a quick play with two sig gens and x-y inputs on the scope 
>> >gave him some Space 1999 style lissajous figures on screen.  He nearly 
>> >wet himself with joy.
>> >Anyone 'in the know' would have realised the scope image had nothing to 
>> >do with the digital board in front of me and the really eagle eyed would 
>> >have noticed that the scope probe I was holding while looking intently 
>> >at the scope was no longer even connected having connected a BNC lead in 
>> >its place.  Fun times.
>> 
>> The press loves old gear: tape decks, round-tube oscilloscopes, things
>> with meters and knobs. And the people in the pics are always
>> "examinimg" or "inspecting" "contraptions." What can you expect from
>> journalism majors?
>> 
>> Even the tech mags like photos of thru-hole parts on boards.
>> 
>> It's funny when artsy types fake PCB layout patterns.
>> 
>
>http://www.thepoke.co.uk/2016/03/09/soldering-stock-photo-fail/
>
>-Lasse

She is repairing a cold solder joint.


-- 

John Larkin         Highland Technology, Inc

lunatic fringe electronics 

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#403523

On Friday, March 18, 2016 at 11:22:47 PM UTC-4, John Larkin wrote:
> On Fri, 18 Mar 2016 09:14:43 -0700 (PDT), Lasse Langwadt Christensen
> <langwadt@fonz.dk> wrote:
> 
> >Den fredag den 18. marts 2016 kl. 17.06.53 UTC+1 skrev John Larkin:
> >> On Fri, 18 Mar 2016 10:22:55 +0000, The Hemulen
> >> <hemulen@moomin-valley.fi> wrote:
> >> 
> >> >On 16/03/2016 23:52, John Larkin wrote:
> >> >> Just found this online.
> >> >>
> >> >> https://www.flickr.com/photos/llnl/3501671601
> >> >>
> >> >Don't you just love those staged photo's?!  I used to dread companies I 
> >> >worked at having the press in as they would always end up wanting 
> >> >photo's or video of 'something technical looking'.  One especially 
> >> >annoying photographer wasn't happy with the square pulse images on the 
> >> >screen so a quick play with two sig gens and x-y inputs on the scope 
> >> >gave him some Space 1999 style lissajous figures on screen.  He nearly 
> >> >wet himself with joy.
> >> >Anyone 'in the know' would have realised the scope image had nothing to 
> >> >do with the digital board in front of me and the really eagle eyed would 
> >> >have noticed that the scope probe I was holding while looking intently 
> >> >at the scope was no longer even connected having connected a BNC lead in 
> >> >its place.  Fun times.
> >> 
> >> The press loves old gear: tape decks, round-tube oscilloscopes, things
> >> with meters and knobs. And the people in the pics are always
> >> "examinimg" or "inspecting" "contraptions." What can you expect from
> >> journalism majors?
> >> 
> >> Even the tech mags like photos of thru-hole parts on boards.
> >> 
> >> It's funny when artsy types fake PCB layout patterns.
> >> 
> >
> >http://www.thepoke.co.uk/2016/03/09/soldering-stock-photo-fail/
> >
> >-Lasse
> 
> She is repairing a cold solder joint.

She needs gloves.  The iron could freeze her fingers.

Cheers,
James Arthur

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#403357

On 03/18/2016 12:06 PM, John Larkin wrote:
> On Fri, 18 Mar 2016 10:22:55 +0000, The Hemulen
> <hemulen@moomin-valley.fi> wrote:
>
>> On 16/03/2016 23:52, John Larkin wrote:
>>> Just found this online.
>>>
>>> https://www.flickr.com/photos/llnl/3501671601
>>>
>> Don't you just love those staged photo's?!  I used to dread companies I
>> worked at having the press in as they would always end up wanting
>> photo's or video of 'something technical looking'.  One especially
>> annoying photographer wasn't happy with the square pulse images on the
>> screen so a quick play with two sig gens and x-y inputs on the scope
>> gave him some Space 1999 style lissajous figures on screen.  He nearly
>> wet himself with joy.
>> Anyone 'in the know' would have realised the scope image had nothing to
>> do with the digital board in front of me and the really eagle eyed would
>> have noticed that the scope probe I was holding while looking intently
>> at the scope was no longer even connected having connected a BNC lead in
>> its place.  Fun times.
>
> The press loves old gear: tape decks, round-tube oscilloscopes, things
> with meters and knobs. And the people in the pics are always
> "examinimg" or "inspecting" "contraptions." What can you expect from
> journalism majors?
>
> Even the tech mags like photos of thru-hole parts on boards.
>
> It's funny when artsy types fake PCB layout patterns.
>
>

One might argue that the whole purpose of television production is a 
desperate attempt to make an inherently uninteresting medium interesting.

I think studies have shown that the frequency of "jump cuts" in music 
videos/TV/film has steadily increased in the past 4 decades. It's at the 
point now that a friend of mine was showing me a music video the other 
day, and the jump cuts were happening so quickly that my brain couldn't 
even process it. Maybe there was a story or something happening in there 
- who knows?

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#403431

On Friday, March 18, 2016 at 12:06:53 PM UTC-4, John Larkin wrote:
> On Fri, 18 Mar 2016 10:22:55 +0000, The Hemulen
> <hemulen@moomin-valley.fi> wrote:
> 
> >On 16/03/2016 23:52, John Larkin wrote:
> >> Just found this online.
> >>
> >> https://www.flickr.com/photos/llnl/3501671601
> >>
> >Don't you just love those staged photo's?!  I used to dread companies I 
> >worked at having the press in as they would always end up wanting 
> >photo's or video of 'something technical looking'.  One especially 
> >annoying photographer wasn't happy with the square pulse images on the 
> >screen so a quick play with two sig gens and x-y inputs on the scope 
> >gave him some Space 1999 style lissajous figures on screen.  He nearly 
> >wet himself with joy.
> >Anyone 'in the know' would have realised the scope image had nothing to 
> >do with the digital board in front of me and the really eagle eyed would 
> >have noticed that the scope probe I was holding while looking intently 
> >at the scope was no longer even connected having connected a BNC lead in 
> >its place.  Fun times.
> 
> The press loves old gear: tape decks, round-tube oscilloscopes, things
> with meters and knobs. And the people in the pics are always
> "examinimg" or "inspecting" "contraptions." What can you expect from
> journalism majors?
> 
> Even the tech mags like photos of thru-hole parts on boards.
> 
> It's funny when artsy types fake PCB layout patterns.

Old Tek 'scopes are beautiful when you take the sides off.

George H. 

> 
> 
> -- 
> 
> John Larkin         Highland Technology, Inc
> 
> lunatic fringe electronics

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#403505

John Larkin wrote:
>
> The press loves old gear: tape decks, round-tube oscilloscopes, things
> with meters and knobs. And the people in the pics are always
> "examinimg" or "inspecting" "contraptions." What can you expect from
> journalism majors?

When journalism was first offered as a major, practicing journalists 
said it was like offering a "major in swimming".

-- 

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#403518

On Sat, 19 Mar 2016 12:10:38 -0400, "Tom Del Rosso"
<fizzbintuesday@that-google-mail-domain.com> wrote:

>John Larkin wrote:
>>
>> The press loves old gear: tape decks, round-tube oscilloscopes, things
>> with meters and knobs. And the people in the pics are always
>> "examinimg" or "inspecting" "contraptions." What can you expect from
>> journalism majors?
>
>When journalism was first offered as a major, practicing journalists 
>said it was like offering a "major in swimming".

The gullibility and innumeracy of the press is awesome. "Million" and
"billion" are freely interchangeable. A country-eating swarm of
locusts is described as "thousands." Prejudicial adjectives are flung
around to let us know what side the author is on.

There should be no university majors in journalism or political
science. People should learn how to do something real before they are
hired to write about it or manage it.


-- 

John Larkin         Highland Technology, Inc

lunatic fringe electronics 

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#403546

John Larkin wrote:

> The gullibility and innumeracy of the press is awesome. "Million" and
> "billion" are freely interchangeable. A country-eating swarm of
> locusts is described as "thousands." Prejudicial adjectives are flung
> around to let us know what side the author is on.

Peeve: “decimated” used synonymously with “devastated”.

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#403555

On 3/19/2016 1:20 PM, John Larkin wrote:
> On Sat, 19 Mar 2016 12:10:38 -0400, "Tom Del Rosso"
> <fizzbintuesday@that-google-mail-domain.com> wrote:
>
>> John Larkin wrote:
>>>
>>> The press loves old gear: tape decks, round-tube oscilloscopes, things
>>> with meters and knobs. And the people in the pics are always
>>> "examinimg" or "inspecting" "contraptions." What can you expect from
>>> journalism majors?
>>
>> When journalism was first offered as a major, practicing journalists
>> said it was like offering a "major in swimming".
>
> The gullibility and innumeracy of the press is awesome. "Million" and
> "billion" are freely interchangeable. A country-eating swarm of
> locusts is described as "thousands." Prejudicial adjectives are flung
> around to let us know what side the author is on.
>
> There should be no university majors in journalism or political
> science. People should learn how to do something real before they are
> hired to write about it or manage it.

I've heard similar things about people like you spouting off about 
politics.  Better you learn something about the things you talk about.

-- 

Rick

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#403328

On 03/16/2016 07:52 PM, John Larkin wrote:
> Just found this online.
>
> https://www.flickr.com/photos/llnl/3501671601
>
> It's the Master Oscillator Room for the NIF laser fusion facility. It
> ggenerates the 192 shaped fiberoptic pulses that get amplified to
> free-space megajoule level to whack the hydrogen pellet in the target
> chamber.
>
> https://www.flickr.com/photos/llnl/3421902499/in/photostream/
>
> The black rackmount boxes with the circular fan grilles are our
> fiberoptic arbitrary waveform generators.
>
>

Did you hear about this "piston fusion" thing that some company is 
experimenting with?

https://www.technologyreview.com/s/414559/a-new-approach-to-fusion/

I guess the idea is to use a bunch of hydraulic rams to compress the 
fusion fuel in the core of the reactor. Apparently DSP has only recently 
become fast enough to servo the rams accurately enough to maybe make it 
feasible.

It's very steampunk...

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