Hi Greg, Nice catch!By monitoring the voltage or current response with an oscilloscope in combination with your signal generator in sweep mode, you can easily measure the frequency response of your primary tank circuit, resonator:toroid, etc. By injecting a signal into the isolated primary circuit or the base of an isolated secondary, you can directly see the frequency response (and, indirectly calculate the Q) of your primary tank circuit and your secondary. You could even sweep the primary circuit with the secondary installed to measure the separation between the "double humped" frequency response of the coupled circuits and use this to calculate the effective coupling coefficient between the two. You can also use this to verify the frequency response of your Terry Filter or even your home stereo system.
Sweep can be a very useful feature! Bert G Hunter wrote:
I just acquired a used function generator from e-bay. Very nice looking "Protek" unit made in Korea. Real bargain. No user manual though. Range is <1Hz to 2MHz which should be fine for pinging secondaries, tuning up primary circuits, coupling measurements, etc. I just have one question. What is the "SWEEP" control for? I turned it on while monitoring the output on an o'scope, and it seems to repetitively sweep the output frequency from low to high. What good is that? Poor man's spectrum analyzer? If the sweep control has some useful application for TC testing, adjustment, or analysis, please share it with the list. Otherwise, kindly reply off-list. Many Thanks, Greg_______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
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