my cap's for my new TC have arrived!
Download, Wed Mar 07 2007, 08:30AMmy 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 
Re: my cap's for my new TC have arrived!
sparky, Wed Mar 07 2007, 09:30AM
Who makes them? 4 kV at .01uF --- wow, nice find!!
sparky, Wed Mar 07 2007, 09:30AM
Who makes them? 4 kV at .01uF --- wow, nice find!!
Re: my cap's for my new TC have arrived!
Download, Wed Mar 07 2007, 09:39AM
asc makes them
and there are plenty more on ebay
Download, Wed Mar 07 2007, 09:39AM
asc makes them
and there are plenty more on ebay
Re: my cap's for my new TC have arrived!
Sulaiman, Wed Mar 07 2007, 01:46PM
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.
Sulaiman, Wed Mar 07 2007, 01:46PM
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.
Re: my cap's for my new TC have arrived!
Download, Wed Mar 07 2007, 09:09PM
umm "de-rate" them what does that mean?
Download, Wed Mar 07 2007, 09:09PM
umm "de-rate" them what does that mean?
Re: my cap's for my new TC have arrived!
Bjørn, Wed Mar 07 2007, 10:28PM
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.
Bjørn, Wed Mar 07 2007, 10:28PM
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.
Re: my cap's for my new TC have arrived!
..., Wed Mar 07 2007, 11:41PM
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.
..., Wed Mar 07 2007, 11:41PM
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.
Re: my cap's for my new TC have arrived!
Download, Thu Mar 08 2007, 05:59AM
Download, Thu Mar 08 2007, 05:59AM
... 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.
i have 40. yes 40 caps i got them for 30 bucksI 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.
Print this page