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Kirt's Cogitations™ #134

These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.

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   Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or
                                        reflection; meditation; contemplation.
   Kirt [kert] – proper noun: RF Cafe webmaster.


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The Origin of "I"

Here's an assignment for engineering new grads and technicians. Go ask your favorite engineer why the letter "I" is used as a symbol for current. Don't give him (or her) too much grief for not knowing - the vast majority of engineers I asked didn't know.

The answer: Intensity, since current was originally thought of as being how intense or concentrated the electron flow is in a circuit.

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 RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
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