OT: current value of a Tek 2236 scope?

Grumps wrote:
"Jan Panteltje" <pNaonStpealmtje_at_yahoo.com> wrote in message
news:hkrq6b$rdo$1_at_news.albasani.net...
On a sunny day (Tue, 9 Feb 2010 13:55:13 -0000) it happened "Grumps"
nothere_at_hotmail.com> wrote in <7td7rqFj3bU1_at_mid.individual.net>:

"Jan Panteltje" <pNaonStpealmtje_at_yahoo.com> wrote in message
news:hkrp5i$pn0$1_at_news.albasani.net...
On a sunny day (Tue, 9 Feb 2010 10:57:34 -0000) it happened "Grumps"
nothere_at_hotmail.com> wrote in <7tctemFndpU1_at_mid.individual.net>:

Hi
I'm looking at making a video grabber that will grab VGA video wit
a
pixel
clock of up to 250MHz (approx).
I've used monolithic decoders in the past which work fine. But the
frequency
does not go to 250MHz.
Before I start evaluating what I need to do, is anyone aware of a
suitable
decoder that runs at this speed? Whether it's a monolithic part o
even
a
complete board, I don't mind.

And would I be correct in thinking that the solution to this is t
have
a
PLL/VCO to lock to the hsync in order to generate the sample/pixel
clock.
Some sort of phase shift for the sample clock to get the centre o
the
pixel. Then a few ADCs?
Thanks.
Why make a VGA video grabber?
In case of a PC grab the display buffer, in case of an FPGA th
same.
If all else fails but a HD Canon camera and point it at the screen.
Thanks. All very good suggestions, but none are acceptable in this
situation.
It HAS to be from the VGA analog signal.
Anna Log has been dead for a few years :-)

RIP poor Anna!
However, there are many users of Anna's VGA. And some of these want t
frame
grab high res.
I can buy a grabber for $2k. But that's not a proposal I'd want to pu
to my
customer.


There are video capture cards...
You can try 1st vision Inc. They sell vision frame grabber..

It's been _really_ bad here in Arizona... every few days a little bit
of rain, and highs of only around 65ºF ;-)

So I can't shake this bronchitis I've had since Thanksgiving. When I
told the nurses that what I needed was a few days of 100ºF+ and I'd be
cured, they grimaced. I asked if I was correct, they were "newbies".
Of course, they hadn't developed an appreciation for HOT

Jim Thompson wrote:

It's been _really_ bad here in Arizona... every few days a little bit
of rain, and highs of only around 65ºF ;-)

So I can't shake this bronchitis I've had since Thanksgiving. When I
told the nurses that what I needed was a few days of 100ºF+ and I'd be
cured, they grimaced. I asked if I was correct, they were "newbies".
Of course, they hadn't developed an appreciation for HOT ;-)


People look at me funny when I go out wearing a tee shirt and shorts
in 40 degree weather. OTOH, I laugh at them for wearing a winter coat,
gloves and a hat when it's 65 degrees outside.