Hi Joshua,
I would not get hung up trying to optimize attenuation of your coil's
resonant frequency. Again, the point of the R-C finter in the Terry filter
is to filter out VHF bursts that occur during the gap's zero-crossings.
As to why your filter cap died a fiery death, that is a mystery. Perhaps a
construction defect where you had just two in series rather than three?
On Wed, Nov 24, 2021 at 9:51 PM Chris Reeland <chrisreeland@xxxxxxxxx>
wrote:
> Hi Joshua,
>
> "On Wed, Nov 24, 2021, 7:58 PM Joshua Thomas <joshuafthomas@xxxxxxxxx>
> wrote:
>
> Gary, I had been reading your notes on filtering and resistor inductance
> here: http://www.laushaus.com/rcl_filter_simulation.htm
>
> I had to check with the manufacturer, but the self-inductance of my 500 ohm
> wire-wound capacitors is 220 uH. My resistor's actual measurement is 470
> ohm. An RCL simulator with 470 ohm, 220 uH and 1 nF (the setup I was using)
> shows a small signal gain in the frequency range my coil resonates. It's
> not much - less than 2 dB - but it's enough to make me wonder if this
> contributed to the damage to my capacitors.
>
> I will be choosing a capacitance value for the rebuild of the filter which
> doesn't have any gain in my coil resonant range. As well as significantly
> more capacitors to limit the stress per capacitor.
>
> -Joshua Thomas"
>
>
>
> I want to say to not forget at the time of burning them up you were
> accidentally floating your center tap NST. Could very well be a factor
> also...
>
> Chris Reeland
> Ladd Illinois USA
>
> Sent from my Lenovo Tablet
> _______________________________________________
> Tesla mailing list -- tcml@xxxxxxxxxxxxxxx
> To unsubscribe send an email to tcml-leave@xxxxxxxxxxxxxxx
>