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Do not open if you are offended by graphic images. (Original Post) ohiosmith Jan 2012 OP
Man, that is HOT!!! ret5hd Jan 2012 #1
And, more than a little disturbing. ohiosmith Jan 2012 #2
You cad! geardaddy Jan 2012 #3
You had more than an adequate warning. ohiosmith Jan 2012 #4
lol geardaddy Jan 2012 #5
How could you??!! HappyMe Jan 2012 #6
I'm a rebel! ohiosmith Jan 2012 #7
WTF is that? MilesColtrane Jan 2012 #8
The Smith Chart, ohiosmith Jan 2012 #9
Hey now. HappyMe Jan 2012 #12
Hahahaha! ohiosmith Jan 2012 #13
Learned about them in school, in all my years working electronics never saw one again. dimbear Jan 2012 #17
I'll be in my bunk. n/t MiddleFingerMom Jan 2012 #10
Sick bastard! ohiosmith Jan 2012 #11
Rule 34. Brickbat Jan 2012 #14
Shhhh! ohiosmith Jan 2012 #15
RF Engineer pr0n... BiggJawn Jan 2012 #16

ohiosmith

(24,262 posts)
9. The Smith Chart,
Tue Jan 17, 2012, 04:00 PM
Jan 2012

invented by Phillip H. Smith (1905–1987), is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits. Use of the Smith chart utility has grown steadily over the years and it is still widely used today, not only as a problem solving aid, but as a graphical demonstrator of how many RF parameters behave at one or more frequencies, an alternative to using tabular information. The Smith chart can be used to represent many parameters including impedances, admittances, reflection coefficients, scattering parameters, noise figure circles, constant gain contours and regions for unconditional stability. The Smith chart is most frequently used at or within the unity radius region. However, the remainder is still mathematically relevant, being used, for example, in oscillator design and stability analysis.

Also known as Spock's slide rule.

dimbear

(6,271 posts)
17. Learned about them in school, in all my years working electronics never saw one again.
Tue Jan 17, 2012, 09:21 PM
Jan 2012

Replaced by computer programs............

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