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Re: Best break-rates, was: additional transformers [rolled caps]
From: Jim Fosse[SMTP:jim.fosse-at-bjt-dot-net]
Reply To: jim.fosse-at-bjt-dot-net
Sent: Sunday, August 10, 1997 2:22 PM
To: Tesla List
Subject: Re: Best break-rates, was: additional transformers [rolled caps]
>From: FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
>Sent: Friday, August 08, 1997 4:12 AM
[snip]
>> The Twin system which I have recently built really comes alive in
>> this 400 PPS regieme, and is noticeably less remarkable at slower
>> rates, including attempts to set the non-sync DC rotary break motor
>> to run synchronously at 120 BPS (due to large wheel inertia and
>> variac control I can successfully ride the crest of the sinewave peaks for
>a few
>> seconds at a time). I subsequently have no intention to operate the
>> Twin at 120 BPS synchronous, nor any need to operate it's break rate
>> exceeding 402 PPS.
[snip]
>I've been pondering this break rate issue on my coils also. I wonder
>if it is possible that the particular toroid size that you used was
>"demanding" the extra power available at the slightly higher break-rate?
Rob and John,
I would suggest that this "sweet" break rate is at the
resonant frequency of current limiting ballast inductor and the TC's
primary cap. At this frequency, both the output I and V go to Q times
the normal I and V! Remember, this IS a resonant system on BOTH sides
of the spark gap. I'd be interested in seeing if the math proves this
out.
Regards,
jim