sci.electronics.design Google Group

Re: Bloom Energy Servers

|||newspam...@nezumi.demon.co.uk (Martin Brown) — Thu, 11 Mar 2010 22:30:53 UT

amdx wrote:
It has come up before fairly recently. I confess I am sceptical in that
I cannot see where these units dump their waste heat. What he seems to
have done is make mass produced self healing fuel cells that are
tolerant of different fuels. And probably run rather hot inside the box.
Other fuel cell technologies exist but are rather fussy about what they

Re: XTL choice for 137Hz w/ CD4046

pim...@invalid.invalid (pimpom) — Thu, 11 Mar 2010 22:27:14 UT

You married at 19? Me, I waited another 14 years after my 19th
birthday. I married a girl I taught during a brief stint at
teaching.
Story: Back in January 1975, my sister's 11-month old son fell 20
ft onto a stone pavement and very very nearly died. During the
crucial months of the baby's recovery, I subbed for my sister at

Re: 3 phase from func.gen. IC

bill.slo...@ieee.org (Bill Sloman) — Thu, 11 Mar 2010 22:24:55 UT

[link]
sin(x + y) = sin x. cos y + cos x.sin y
sin(2.pi.t + 3.pi/2) = sin(2.pi.t).cos(2.pi/3) + cos(2.pi.t).
sin(2.pi/3)
= sin(2.pi.t).-0.5 + cos(2.pi.t). 0.866025403
which you can get with a summing amplifier, as you can with sin(2.pi.t

Re: XTL choice for 137Hz w/ CD4046

eat...@tpg.com.au (David Eather) — Thu, 11 Mar 2010 22:17:26 UT

Any objections to 4.5Mhz divided by 2^15? ( gives 137.3291015625 0.23
percent error which is a bit high but can at least be partly corrected)

Re: uP/uC Floating Pins?

hal-use...@ip-64-139-1-69.sjc.megapath.net (Hal Murray) — Thu, 11 Mar 2010 22:11:38 UT

Why are you designing something for a chip that doesn't exist?
Ask the guy who is trying to sell you the chip?
Ask the guy who told you about the chip?
Use another chip.

Re: XTL choice for 137Hz w/ CD4046

to-email-use-the-envelope-i...@my-web-site.com (Jim Thompson) — Thu, 11 Mar 2010 22:06:36 UT

On Thu, 11 Mar 2010 12:57:47 -0800, Joerg <inva...@invalid.invalid>
wrote:
Not our style.

...Jim Thompson

Re: XTL choice for 137Hz w/ CD4046

eat...@tpg.com.au (David Eather) — Thu, 11 Mar 2010 22:01:34 UT

D'oh! (note to self - always check, always check)

Re: Book Signal Integrity for PCB Designs available on net

inva...@invalid.invalid (Joerg) — Thu, 11 Mar 2010 21:59:12 UT

Even better. Since you have now determined that we no longer need the
range from 350MHz to 3.5GHz we could auction that off and issue revenue
anticipation bonds to plug some pressing holes in the budget. Since the
money will have been spent by the time the auction happens we could
already look at whether the 35kth harmonic is good enough so we can pay

Re: A nation of scammers (US Capitalism gone wild?)

mike.terr...@earthlink.net (Michael A. Terrell) — Thu, 11 Mar 2010 21:59:03 UT

mpm wrote:
Poorly recycled waste water. :(

Re: OT: A nation of scammers (US Capitalism gone wild?)

mike.terr...@earthlink.net (Michael A. Terrell) — Thu, 11 Mar 2010 21:58:13 UT

What have we taken by military force, other than the lives of our
military? Be specific.

Re: Basic Stamp

christopher.man...@gmail.com (Chris) — Thu, 11 Mar 2010 21:36:29 UT

My debounce design gives a 50% duty cycle. That would be 20ms long
pulse. So your design requires a short pulse over the period? It
comes out of the camera as a 5ms pulse. Again, I am not sure if there
is bounce present. All I know is that the multivibrator worked, but
the camera switch did not lock on the right frequency. The loop was

Re: A nation of scammers (US Capitalism gone wild?)

p...@pstech-inc.com (Paul E. Schoen) — Thu, 11 Mar 2010 21:35:40 UT

I use Sprint too. My contract expired in 2007 and I've been thinking
about either re-upping, possibly getting a new phone (this battery
should die any minute?? - it's amazing it's lasted this long!!!),
If I switch, the closest thing they offer to what I have now costs
about $10 more.
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Re: Prototyping Area

hamil...@nothere.com (hamilton) — Thu, 11 Mar 2010 21:30:34 UT

[link]
Many stores carry these.
hamilton

Re: Book Signal Integrity for PCB Designs available on net

zapwiredashgro...@yahoo.com (Joel Koltner) — Thu, 11 Mar 2010 21:30:43 UT

I think that's (sort of) what he's trying to say... it's just that there's
plenty of application for fast pulse generators with lot repetition rates
(e.g., TDR!), where you do need to treat the interconnects as "high speed."

Re: A nation of scammers (US Capitalism gone wild?)

mpmill...@aol.com (mpm) — Thu, 11 Mar 2010 21:30:17 UT

On Mar 11, 3:45 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
Or Old Milwaukee / Pabst Blue Ribbon, since they are mostly water.