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MeasurementBlues
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Re: Is that you?
MeasurementBlues   12/9/2013 10:35:38 PM
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"I simply cannot imagine ever wearing a suit again in the rest of my life"

When I started in this media business, we wore ties to work every day. Now it's enough just to put on jeans as I type this wearing sweat pants.

On the other hand, I started work and 9:00 and left for the day at 5:00, five days a week. Everything is a tradeoff.

MeasurementBlues
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Resistors aren't resistors
MeasurementBlues   12/9/2013 10:32:19 PM
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@Adam, you seem to be assuming DC here. With AC, a resistor's capacitance and inductance come into play it it becomes impednace, not resistance, that matters.

See Resistors aren't resistors.

Also see Resistor combinations: How many values using 1kohm resistors?

and Find the resistance of a long ladder

and When wires become components

and Two-wire vs. four-wire resistance measurements

 

David Ashton
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Re: How close, yet how far...
David Ashton   12/9/2013 5:23:32 PM
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Plus ça change, plus c'est le meme chose.....

Max The Magnificent
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Re: How close, yet how far...
Max The Magnificent   12/9/2013 5:16:55 PM
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@David: I heard in the old days they would...

I think they still do this -- so your 5% resistors won't include anything that woudl counjt as 2% -- in turn, your 2% won't include anything that falls into the 1% bucket.

David Ashton
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Re: How close, yet how far...
David Ashton   12/9/2013 5:09:52 PM
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I heard in the old days they would take a bunch of resistors and test them.  The ones that were from +10 to+20% OR -10 to -20% of the nominal value would be sold as 20% resistors.   The rest would be sold as 10% resistors.  So if you got 20% resistors you had zero chance of getting the nominal value.   I'm glad 5,2,and 1% resistors are so cheap nowadays.....

Max The Magnificent
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Re: Is that you?
Max The Magnificent   12/9/2013 3:56:27 PM
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@Adam: He should have called you...

He should have called me what? LOL

Adam-Taylor
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Re: Is that you?
Adam-Taylor   12/9/2013 3:50:32 PM
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Max that reminds me of something Prince Phillip (the Queens Husband) who is famous for his gaffes said to Cate Blanchett the actress who he asked if she could fix his DVD player as she worked in the film industry when he met her. He should have called you... 





Max The Magnificent
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Re: Is that you?
Max The Magnificent   12/9/2013 3:43:04 PM
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@Adam: ...maybe we should ask Karen if there is budget for a new suit for you :)

I simply cannot imagine ever wearing a suit again in the rest of my life... unless it's something extrodinary like my being called to the Palace to help the Queen out with a thorny technology problem or something like that... (she never can remember how to program the VCR, bless her)

Adam-Taylor
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Re: Is that you?
Adam-Taylor   12/9/2013 3:37:33 PM
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Max now that would be a sight, maybe we should ask Karen if there is budget for a new suit for you :)

Max The Magnificent
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Re: Is that you?
Max The Magnificent   12/9/2013 3:35:59 PM
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@Adam: I hear you are putting together a team for EELive!

That's right -- the UBM formation marching team -- I''ll be the chief trainer (I'd take part myself if only I still owned a suit ... and tie ... and shiny black shoes ... :-)

 

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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