Chip with simple program for Toy

[Bret Cahill]

A lot of people must have been fiddling data including the Koch sponsored BEST study:

http://berkeleyearth.org/land-and-ocean-data

There is only one conclusion:

It's a decades only multi civilizational conspiracy involving every university on the planet except Liberty U.

 

On Tuesday, June 24, 2014 12:26:57 PM UTC-7, Todd wrote:

On 06/24/2014 11:05 AM, Alek Trishan wrote:

Scott has written on 6/24/2014 1:36 PM:

http://www.eng-lang.co.uk/apostrophe_rules.htm





+1





Guys! The apostrophes were all in the right places.

They were just too small for you to see!





"Ignorant people think it is the noise which fighting

cats make that is so aggravating, but it ain't so; it

is the sickening grammar that they use."

-- Mark Twain

Was "ain't" considered proper grammar during Twain's day?

I am pondering the use of an apostrophe inside a grammatically-incorrect word...

 

On Wednesday, June 25, 2014 12:08:48 PM UTC-7, OldGuy wrote:

http://www.eng-lang.co.uk/apostrophe_rules.htm



Thats O'T



lol







--- news://freenews.netfront.net/ - complaints: news@netfront.net ---

Or isn't it l'ol?

 

[Ron M.]

Was the bitter almond smell still apparent? Hehe!

 

On Thursday, July 3, 2014 2:20:04 AM UTC-7, Mike Perkins wrote:
<snip>

Historically I would have used a parallel inductor and resistor to

ensure the burst is not significantly affected by a clamp.



You can make a good DC restorer by clamping on the sync tip to keep your signal in the linear amplifier range,

but that is ALL it is good for.

Not much accuracy is needed in such a case, as usually the amplifier range is much bigger than the composite signal,

so a simple diode will do in most cases.



Agreed, and I have also used a simple diode arrangement before. It all

depends on what you're trying to achieve.





I'm surprised,



I'm not





--

Mike Perkins

Video Solutions Ltd

www.videosolutions.ltd.uk

Jim isn't doing a back porch clamp. It appears to grab sync tips and hold them at 0 Volts and as long as the sync amplitude is consistent the black level will be too. This isn't a broadcast rig. You see this sort of thing in consumer gear but not this slick.

Simple diode clamps are often used for 'crude' sync detectors to drive monostables to sample/hold on sync tip and back porch to guarantee 50% slice point for a precision sync detector. You find those in composite analog Time Base Correctors genlock circuits where you absolutely need nanosecond precision to maintain SCH phase.

G˛

 

On Sunday, June 29, 2014 11:06:47 AM UTC-7, Don Kuenz wrote:

Greetings,



Does anyone know of a spreadsheet (a comma separated variable format is

better) that contains data for popular transistors? A single device

fills each row, with columns for part number, maximum rating, electrical

characteristics, small signal characteristics, and switching

characteristics.



Thank you,



--

Don Kuenz

Thank you for volunteering! ^.^

Michael

 

[Michael A. Terrell]

Clifford Heath wrote:

On 15/07/14 08:39, Michael A. Terrell wrote:
? Jim Thompson wrote:
?? Where can I find a good steep-sided CH4 trap filter?
? I built some for Ch 3, almost 40 years ago. It took nine tuned
? circuits to cleanly remove the existing Ch3, to allow the insertion of
? another signal. I could do it with less, but it caused losses at several
? higher channels. They weren't cheap to build. I ended up with glass
? piston trimmer caps, silver mica caps, Adjustable ceramic coil forms and
? coils hand wound on Amidon T50-6 torroids. I also had to put matching
? transformers at each end of the filters to match the assembly to 75
? ohms. I had about four double sided sheets of calculations before I
? found a way to build it with real world parts. It was a series of series
? and parallel tuned traps. Unfortunately, all my design notes and the BOM
? are long gone. I may have one damaged prototype, lurking somewhere my
? badly damaged shop building.

Yowsers. I bet it was expensive to tune up, too.

I didn't have a sweep generator or a network analyzer back then, so I
tuned it with a Sadelco TV FSM, and fed by the local CATV system. Since
all nine adjustments were interactive, it took over an hour for each.
They were built for MATV systems at the local schools, to remove the
scrambled HBO, and insert the output of their reel to reel VTRs. The
design also included a combiner at the output, to insert the new
signal. The 'Q' was so high that I read a little over 300 volts of RF
on some of the series tuned traps. Of course, the highest was the one
that was used to remove the HBO jamming signal.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

On Thu, 17 Jul 2014 07:59:15 -0500, amdx <nojunk@knology.net> wrote:

Hi all,
I helped my neighbor disassemble a pump motor, we had to remove the
centrifugal assembly from the shaft. The centrifugal assembly opens a
switch when it gets up to speed. Opposite of what I thought would
happen. The motor has a start capacitor.

I just did a Google search thinking I might just answer my own question,
but all I did was confirm what I thought I knew.

So, why does the switch open when the motor gets up to speed?

What is the circuit before the switch closes vs. after the switch closes.

Yes, I'm sure the switch is closed at stall and is pushed open when the
weight swings.
Mikek

That switch is for the start winding. The start winding should not be
energized for more than a few seconds because it will overheat. Make
sure the start switch goes back in the same location on shaft.
Depending on how the switch is actuated the wrong location will either
prevent the switch from opening or else the switch will always be
closed. So if the motor just hums when it is powered up then the
switch is open, and if the motor does start correctly make sure it
doesn't get hot real fast, because that will mean the switch is always
closed.
Eric

 

Ahh. I was wondering about that just this morning (non-constant voltage). Thanks!

 

Wow!
But isn't chromium-vi toxic?

 

Yankee engineering at its finest !

 

[amdx]

On 7/18/2014 1:25 PM, mrdarrett@gmail.com wrote:

Wow.
https://www.youtube.com/watch?v=P9UjxG8sN1c

I think it is a well done common local store parts project*,
but he misses on one technical point when he says, (7:47)
"An interesting observation is that the voltage is pretty much constant."

He's right in his one measurement method, but not if he had a load.

Mikek

*With just a few more bucks and a little searching he could have a
variac. I got a 10 amp variac for $15 several years ago.

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http://www.avast.com

 

[Phil Hobbs]

On 7/19/2014 11:16 AM, mrdarrett@gmail.com wrote:

Wow!
But isn't chromium-vi toxic?

It's this one: http://www.youtube.com/watch?v=P_Nzu4LLGpg

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

 

Oh nice. My mom had a similar one when I was a kid. I thought it just had a heating element inside.

 

"I have yet to fully understand why only some traces were covered
by the mineral, but suspect it was the potential on the traces"

It is.

 

[amdx]

On 7/19/2014 11:17 AM, Phil Hobbs wrote:

On 7/19/2014 11:16 AM, mrdarrett@gmail.com wrote:
Wow!
But isn't chromium-vi toxic?


It's this one: http://www.youtube.com/watch?v=P_Nzu4LLGpg

Cheers

Phil Hobbs

Just a little about steam humidifiers vs ultrasonic
mist humidifiers. Years ago when I repaired VCRs, I had a
customer bring in a VCR and many of the copper traces were
covered with a white powder. The powder followed the traces
perfectly, but it was only on certain traces. All PCBs did
have a green masking. I followed up enough to find out the
customer had an ultrasonic humidifier. The minerals in the water
are delivered with the ultrasonic mist but it is mot in the steam.
I have yet to fully understand why only some traces were covered
by the mineral, but suspect it was the potential on the traces.
Curious why I only saw it once. I suspect the ultrasonic humidifiers
were newer on the market. The customer was reluctant to talk about it.
Maybe something else was going on, but I don't know what it would be.
Just thought it was interesting.


Mikek


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http://www.avast.com

 

[amdx]

On 7/19/2014 5:16 PM, jurb6006@gmail.com wrote:

"I have yet to fully understand why only some traces were covered
by the mineral, but suspect it was the potential on the traces"

It is.

Have you seen the phenomenon?
Depending on your water supply, the minerals in the air might cause some
breathing difficulty.

Mikek

 

[Phil Hobbs]

On 7/19/2014 4:12 PM, amdx wrote:

On 7/19/2014 11:17 AM, Phil Hobbs wrote:
On 7/19/2014 11:16 AM, mrdarrett@gmail.com wrote:
Wow!
But isn't chromium-vi toxic?


It's this one: http://www.youtube.com/watch?v=P_Nzu4LLGpg

Cheers

Phil Hobbs


Just a little about steam humidifiers vs ultrasonic
mist humidifiers. Years ago when I repaired VCRs, I had a
customer bring in a VCR and many of the copper traces were
covered with a white powder. The powder followed the traces
perfectly, but it was only on certain traces. All PCBs did
have a green masking. I followed up enough to find out the
customer had an ultrasonic humidifier. The minerals in the water
are delivered with the ultrasonic mist but it is mot in the steam.
I have yet to fully understand why only some traces were covered
by the mineral, but suspect it was the potential on the traces.
Curious why I only saw it once. I suspect the ultrasonic humidifiers
were newer on the market. The customer was reluctant to talk about it.
Maybe something else was going on, but I don't know what it would be.
Just thought it was interesting.

Ultrasonic humidifiers are better in some cases, e.g. when the room is
already too hot for the patient. Generally in the north, though, a bit
of extra warmth during flu season is a good thing. Ultrasonics often
seem to have bits of schmutz growing in the tank and round the piezo
element, which makes a boiling-water source sort of comforting.

Cheers

Phil Hobbs


--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net

 

[Michael Black]

On Sat, 19 Jul 2014, amdx wrote:

On 7/19/2014 11:17 AM, Phil Hobbs wrote:
On 7/19/2014 11:16 AM, mrdarrett@gmail.com wrote:
Wow!
But isn't chromium-vi toxic?


It's this one: http://www.youtube.com/watch?v=P_Nzu4LLGpg

Cheers

Phil Hobbs


Just a little about steam humidifiers vs ultrasonic
mist humidifiers. Years ago when I repaired VCRs, I had a
customer bring in a VCR and many of the copper traces were
covered with a white powder. The powder followed the traces
perfectly, but it was only on certain traces. All PCBs did
have a green masking. I followed up enough to find out the
customer had an ultrasonic humidifier. The minerals in the water
are delivered with the ultrasonic mist but it is mot in the steam.
I have yet to fully understand why only some traces were covered
by the mineral, but suspect it was the potential on the traces.
Curious why I only saw it once. I suspect the ultrasonic humidifiers were
newer on the market. The customer was reluctant to talk about it.
Maybe something else was going on, but I don't know what it would be.
Just thought it was interesting.


But that's an old story (well apart from the stuff about circuit boards).

Everyone jumped in when the ultrasonic humidifiers came along, a cool
mist. But then at some point, it was revealed that the mist would carry
unwanted things, unless one washed things out carefully and changed the
filters or whatever.

I'm not sure what the state of ultrasonic humidifers is these days. I
know when I bought a humidifer a few years back, it was hyped as a "cool
humidifier" but it was a small drum humidifier. Fill it up with water,
there's a wick that draws up the water, and a fan to spread that out. I'm
not sure how well it works, but it's neither ultrasonic or the hot ones
with the two electrodes.

Michael

 

[jfeng@my-deja.com]

On Monday, July 21, 2014 7:06:02 PM UTC-7, Jim Thompson wrote:

http://tinyurl.com/l96wcm4
I remember reading (in either APS News or Physics Today) that the vast majority (like 80-90%) of physical scientists in the US self-identified as Democrats. By the logic of your article, it would be reasonable to extrapolate that modern physics shows a similar bias. The heliocentric solar system is another left-wing fantasy, and the earth is really flat. The Big Bang could not be true because it requires that the universe be much more than 6,000 years old (and to be over 10 million years old), and the data supporting this theory was fabricated by that famous hotbed of liberalism, Bell Labs and the American Telephone and Telegraph Company. Quantum mechanics and relativity are left-wing conspiracies created to exclude God-fearing Christians from the conversation because they just cannot manage the mathematics (calculus is hard!). All the subatomic particles are just fiction and conspiracies to extract money from taxpayers. The list goes on and on. You just cannot believe what physicists tell you.