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Registered Member #561
Joined: Sat Mar 03 2007, 02:46AM
Location: Adelaide Australia
Posts: 230
my cap's for my new TC have arrived . there not the top of the range but they are still good. there 4kv .o1uf, i have got 40 of them and they came with 100 free zip ties
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
They look like metalised polyester capacitors, good for high voltage dc and audio bypass or decoupling not so good for Tesla Coil use for two reasons; 1 - Polyester dielectric is quite lossy at TC frequencies so the capacitor will heat up due to voltage/frequency 2 - Metalised film end connections are not (usually) suitable for large currents, so will heat up in TC use
So when you use them in a TC, monitor the capacitor surface temperature (when the power is disconnected and the capacitors are discharged) If they stay cool or warm then no problem if they get hot then you will need to de-rate them and/or add a fan for cooling.
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
The forum is not a dictionary, please read the rules again:
B. Do your own research. If you intend to ask a question, please make sure it isn't already addressed in the archives, or on the wiki. Also, be sure to perform at least a cursory Google search. Remember, nobody wants to do your homework for you. Show some effort, and the community will repay you in kind.
Use Google, a dictionary or a teacher to find out.
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
I wouldn't worry too much about the caps, SGTC's do not stress the caps as much as do some of the solid state (drsstc, etc) coils do.
But ya, just if they get too hot add another few caps to each string (you did get some extras, right?) and then add more strings to make up the capacitance lost by adding the extra caps in series.
Registered Member #561
Joined: Sat Mar 03 2007, 02:46AM
Location: Adelaide Australia
Posts: 230
... wrote ...
I wouldn't worry too much about the caps, SGTC's do not stress the caps as much as do some of the solid state (drsstc, etc) coils do.
But ya, just if they get too hot add another few caps to each string (you did get some extras, right?) and then add more strings to make up the capacitance lost by adding the extra caps in series.
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my cap's for my new TC have arrived!
. there not the top of the range but they are still good. there 4kv .o1uf, i have got 40 of them and they came with 100 free zip ties 
