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4hv.org :: Forums :: Tesla Coils
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Cornell Capacitors

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kahunagorilla
Thu Sept 27 2012, 02:36PM Print
kahunagorilla Registered Member #6489 Joined: Wed Sept 05 2012, 04:52PM
Location:
Posts: 3
I'm looking at the C-D p=10932592942C10P1K-F capacitors found here. I was wondering if anyone has had any trouble using these, or if these are just as good as their 2000v cousins?
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E.TexasTesla
Thu Sept 27 2012, 03:51PM
E.TexasTesla Registered Member #4362 Joined: Sat Jan 21 2012, 03:44AM
Location: Texas
Posts: 98
I haven't tried them but they look like the same material as their cousins.
33% less capacitance 50% lower voltage but 57% lower price on that web site.

Might run out of space on a larger coil.

On a side note, are you Kahunakid from Ebay?
If so I purchased a nice oscilloscope from you a while back.

Jencoautomotive
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HV Enthusiast
Thu Sept 27 2012, 05:19PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
These capacitors are fine. You will just need a larger number of them than their 2000V cousins.

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kahunagorilla
Fri Sept 28 2012, 02:49PM
kahunagorilla Registered Member #6489 Joined: Wed Sept 05 2012, 04:52PM
Location:
Posts: 3
Thanks for the quick reply!

E.TexasTesla: Nope, not the same person. I only wish I had a scope right now!

EasternVoltageResearch: yeah, I realized a bit after posting that the cost would actually be more than buying the bigger ones.

I think I'm just going to use the .15uf 2000v. I'd like to get the .1uf versions, but nobody has enough of them in stock at a price I'm willing to pay.

I plan on wiring them two rows, 9 each for .0333...uf. I'm running a 9000v, 60ma transformer, and javatc suggested with my design that I have at least .017-.018uf. Does .033uf sound like too much?
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Conundrum
Fri Sept 28 2012, 04:13PM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
I'd also add a resistor across each capacitor for load sharing and charging.
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HV Enthusiast
Mon Oct 01 2012, 05:39PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Just do spreadsheet that compares number vs. cost etc... to determine wher e your price break is.
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