Measuring Noise Levels (S/N)

[Rob01]

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Man, Paul, you really know yer stuff!! I could just read your email
posts and i wouldnt have to go to class!! Just kidding, if i didnt go 
to class, who would be there to upset the instructor with questions
about bizzarre analog synth circuits?? My instructor for advanced
semiconductors is an industrial circuits specialist, he HATES when
i bring up obscure commo circuits :>
P.s. As they say, the money order for them parts is in the mail :>
thanx again, Paul!
another thingy,
I am actually a Electronics Technology major, but i substituted all the
calculus based science and math courses, thats how i knew bout the 
Rochelle Salts and tourmaline.The classes arent reqd, but i took them
in case i DO want to get into Elec. Engring. or Chem, engrng. ....