[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [TCML] BPS Testing
In a message dated 3/16/2008 9:24:32 A.M. US Eastern Standard Time,
>I was looking at my input VA for the 140Vac situation. If I work the
>math backwards for the bps measured, my calculated current would be 11.6
>rms amps. Strangely enough, the expected output spark length equates to
>1.42 x sqrt(11.6*240). Why does 1.42 sound so darn familiar? When you
>first derived the JF formula, wasn't it 1.42? Probably nothing, but as
>soon as I saw the value, it felt very familiar.
I never used 1.42. The formula used 1.7 from the beginning since I based
it on the various coils that I built and studied.
>In Javatc in the Transformer section, there is an input for "ballast
>current". It is meant to insert a measured value. If you insert your
>measured input draw value here, it will override the transformer current
>plate specifications and adjust for that particular current draw. So I
>simply set this current value until my static gap section achieved the
>measured 104 bps with my gap geometry (11.6A). At that point, I looked
>at the spark length in the static gap section (57.2") and then found
>57.2/sqrt(16.2*240) = 1.42 and that's when familiarity set it. Probably
Yes, but that's a good feature to have in JavaTC. And your new
BPS of 104 or whatever seems pretty good now. Wasn't it 88 before?
Not a 50% increase, but a nice increase I think. Does the
coil seem to run smoother at the 104 BPS?
>Unfortunately, I didn't pay attention to spark lengths. Once I flipped
>the switch to run the coil, I ran back in the house (turning off the
>garage light in the process) and hit the record function on the pc (I
>then watched events unfold in real time on the pc). But, I could "hear"
>some "good" gap and spark firing happening. I'm certain about 50" was
>real, but can't say if it reached 57" or not.
**************It's Tax Time! Get tips, forms, and advice on AOL Money &
Tesla mailing list