Re: [TCML] Tuning a Tesla Coil with an Oscilloscope

[Brandon Hendershot <brandonhendershot@xxxxxxxxx>]

> A lot of low price DVM's have a frequency range. They normally only measure
> to 1kHz, but that is enough accuracy for what you want. It does not matter
> if they are actually out a bit either, as long as you use the same actual
> meter to calibrate the device and then to measure the coil with.
>

 Yeah, I saw a couple of those on eBay, but there was a good bunch of old
vintage frequency counters for less further up the list. Besides, vintage
test equipment is so much cooler! ;) Thanks Phil.

When you hit the res. freq. of the secondary coil, the amplitude of the
> signal picked up by the scope increases considerably. It "peaks" because
> on each side of the resonance frequency it drops off rapidly.
>

When you sweep past the resonant frequency of the coil, the "amplitude"
spikes, and the wavelength doesn't seem to change. Is it the voltage that
peaks when you find resonance? Does the wavelength stay still (so it seems)
because the adjustments are so fine, or is there some fancy function that I
don't have that you're using? A bit of a silly question, but I want to make
sure my scope has the ability to perform the task before I buy more
equipment I'll probably only use for the occasion.

Thanks,
Brandon
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