Frequency accuracy in older RXs
"gareth" wrote in news:m1agro$srh$1@dont-
email.me:
Square = odds, Triangle = evens
Nope. Both odd. Only when the pulse width ratio becomes significantly
asymmentrical do you get significant occurence of even harmonics in a ramp.
I don't know of a wave that has only even harmonics (short of artificially
contructed ones), but thermionic valves will produce a distortion that has
evens stronger than odds, I think. (I read that somewhere, I've never
measured it).
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