sci.electronics.design Google Group

Bypassing

jjlar...@highnotlandthistechnologypart.com (John Larkin) — Fri, 09 Jan 2009 20:41:41 UT

We recently did a GHz bandwidth optical/electrical converter, and used
a THS4303 output opamp. Per some appnote or something, the designer
bypassed each supply rail with one 0.1 uF 0603 and one 47 pF 0402. The
step response rings like hell, and the fix is to replace the 0402's
with bigger (like, another 0.1 uF) caps.

Video Switch IC for component video (not composite!)

ke...@kmillar.co.uk (kmillar) — Fri, 09 Jan 2009 18:03:12 UT

Hi
Can anyone recommend a good video switch IC, or chipset, for switching
Component (YPbPr) video?
Something which could build, say, a 4 x 1 matrix would be good.
TIA.

why not to buy a Ford

jjlar...@highnotlandthistechnologypart.com (John Larkin) — Fri, 09 Jan 2009 17:11:17 UT

[link]
John

OT: The Coronation

n...@example.net (Richard The Dreaded Libertarian) — Fri, 09 Jan 2009 16:54:12 UT

So, when they install Barry Christ as our new Commissar, do you suppose
he'll walk across the reflecting pool on his way to the Oval Office?
Hey! He's the first President Barry since Goldwater! ;-P
Cheers!
Rich

OT Universal?

r...@example.net (Rich Grise) — Fri, 09 Jan 2009 16:47:04 UT

[link]
Cheers!
Rich

Water detection cable

gdo...@gmail.com (GlennDoten) — Fri, 09 Jan 2009 14:38:34 UT

Does anyone know who manufactures those water sensor cables that are
placed on the floors of datacenters? I've seen the ones that have two
wires in them, although these wires appear to be more like very thin
steel-looking cables of some sort. Each of those wires has sort of a
cloth jacket and then the two jacketed wires are covered with a

Space Aliens take a dislike for wind turbines !

rabbitsfriendsandrelati...@hotmail.com (Eeyore) — Fri, 09 Jan 2009 07:46:23 UT

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Another reported a 'massive ball of light' with 'tentacles going right
down to the ground'.
Then witnesses told of an earsplitting bang at 4am. Come dawn and the
plot thickens.
At the nearby wind farm one of the 60ft blades from a 200ft turbine was

Specially for the Slow Man

rabbitsfriendsandrelati...@hotmail.com (Eeyore) — Fri, 09 Jan 2009 07:35:09 UT

[link]
You are probably wondering whether President-elect Obama owes the world
an apology for his actions regarding global warming. The answer is, not
yet. There is one person, however, who does. You have probably guessed
his name: Al Gore.

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Battery charging with intermittant power source

scottm...@gmail.com (Scott Ronald) — Fri, 09 Jan 2009 03:41:18 UT

Hi I am wondering about the best way to charge lead acid batteries from
a source that cannot be relied on for constant power such as wind, or
solar. So far I am looking at 2 ways to do this:
Cycle charging
For this method I need a constant current, until the charge voltage is
reached, then maintain the charge voltage for a time, or until the

newbie question - remote sound activation?

vgp...@gmail.com (dannydog) — Fri, 09 Jan 2009 02:29:09 UT

What would be necessary to create a simple system that consists of a
controller that has a button (or some other type of activating device)
that could remotely activate a small speaker - like a wi-fi signal -
where the speaker could be located in a house or up to a certain
distance away? Basically, a remote control that activates something

PCI PCB

dirk.bru...@gmail.com (Dirk Bruere at NeoPax) — Thu, 08 Jan 2009 22:39:21 UT

Thinking about the convenience of running a custom design on a PCB and
fitting it to the PCI slot on a PC, just for convenience of voltage,
housing etc.
Are there any manufacturers that sell blanks with gold plated
connectors? Is that the best way to do it?

PADS question: document name

jjlar...@highnotlandthistechnologypart.com (John Larkin) — Thu, 08 Jan 2009 21:24:30 UT

Hi,
Our long-time PADS guy left to start a new life, and we're breaking in
a replacement.
It's going well, except for this annoyance: we used an old board as
the basis for a new one, with a big ECO, saving the outline, mounting
holes, and most of the power supply stuff. Works fine, renamed and
saved as a new design. But the fab and assembly drawings still show