[TCML] Beginner Transformer Question

[bartb]

Hi Ken,

Acquire the PT if it's not too much money. The 7200V can be used like 
all transformers (many have used them with success). Power is a main 
factor to producing great running coils. With the lower voltage, you 
will have to adjust the gap(s) accordingly, but even these lower voltage 
transformers are good if they have high power ratings. People get into 
trouble when they use 7200V transformers of low power (say 20mA to 
30mA), but with a 200mA PT, your sparks will outperform your 12/60 NST 
easily. Sparks will go from about 25" to 60" with simply the transformer 
change. So, it's certainly worth it if the price is right.

Take care,
Bart


Ken Kociolek wrote:
> I hope this isn't too basic a question. I have a 12kV/60mA NST that I will
> build my first coil with. I'm looking down the road a bit and am trying to
> decide whether to take advantage of an opportunity at hand. I have a chance
> now to acquire a GE potential transformer 7200v @ 1.5KVA.  I know this has
> twice the VA capacity of my NST, but what effect will the reduced voltage
> have on coil performance?  I am also aware of the ballasting and added
> precautions associated with this type of non current limited transformer.
> Thanks.
>
> Ken
>