Well it turns out I have an HVAC guy in my network. I have him a call and
he gave me some free caps out of his trusty 5 gallon bucket! I got 9 total,
of which 1 seems to be non-functional.
I did some bench testing and got some amazing results! I just shorted the
secondaries and tested amp draw.
The 15/60 nst drew 8.5 amps. With 177uF I got it down to .5 amps!
The paralleled 15/30s went down to .8 amps with 125uF. I'd add more, but
I'm out of caps. Seems like $8-10 per cap on eBay is the norm, which is
crazy to me.
I'm guessing once the transformers see the LC from the tank, they are going
to pull more than 1.3 amps! Is my method of bench testing in a dead short
and finding the lowest amp draw the correct method?
Here's a pic of my cap pack:
https://imgur.com/a/C5gcyHH
Thanks,
~Dan
Kansas City area
On Sun, Aug 19, 2018, 11:15 AM Gary Gaspar <majrombus@xxxxxxxxxxxxx> wrote:
> I would not for very long to bad you do not have enough of the same 15/30
> or 15/60. the two primaries in series is fine also. You draw the same power
> but less amps because the voltage has doubled. for power lines at high
> voltage means less big copper wires less amps same power.
>
> On Saturday, August 18, 2018 6:00 PM, Daniel Kunkel <
> dankunkel@xxxxxxxxx> wrote:
>
>
> Well the list has been quiet lately, so I will break the silence!
>
> I finally got my second TC up and running and getting some decent sparks. I
> still need to do quite a bit of optimizing, but seeing 4 foot sparks,
> smelling ozone, and hearing the crackle is a welcome change in my garage.
> Video here: https://youtu.be/QvIcqximr_A
>
> Right now the coil is running on a 15/60 and a 15/30 NSTs in parallel. I
> have anther 15/30 that I want to add to the mix, but I am concerned about
> amp draw. My needle is swinging past 20amps now (breaker did not trip), but
> 20a is a lot for a standard outlet. I need some PFC caps. Where is the best
> place to get them?
>
> I do have 240VAC in my garage, and I also seem to recall on old post by
> Richard Quick stating you could run NST's from 240VAC if you put their
> primaries in series. I am guessing this is great if you have two identical
> NSTs. I wonder if it is possible to do this in a series/parallel gang for
> my 15/60 and 15/30's (where it is 60ma on each hot side)?
>
> Thanks,
> ~Dan
> Kansas City area
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