Help Finding Overtones, Again

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: FIFTYGUY@xxxxxxx 

In a message dated 12/15/04 1:46:05 PM Eastern Standard Time, 
tesla@xxxxxxxxxx writes:
BTW, any luck measuring those overtones?

    I obtained another hand-me-down HP oscillator, this time a model 220A 
Square Wave Generator that goes to 10MHz.
    Well, my lab technique leaves a lot to be desired. My scope shows an 
awful lot of ringing on those square waves, so much that it becomes pretty 
much ALL ringing over 2MHz. Wimpy output, at only about 1V P-P or so. I can 
see why I ended up with it - what good is 1V of VHF? Be lucky to make snow 
on the TV...
    Anyhow, I found NO evidence of ANY overtone when using it to base 
drive the secondary coil. I.e., voltage across the generator stayed 
absolutely the same with or without the coil as a load. Running it at 
resonance absolutely drove the poor generator nuts, however. Made a big 
fuzzy mess on the scope screen. Despite all the ringing, I expected 
SOMETHING to happen in the 1-2MHz range you had predicted.

-Phil LaBudde