[TCML] Don't forget the Terry Filter!

[bartb <bartb@xxxxxxxxxxxxxxxx>]

Hi All,

Yesterday, I went after cleaning up in the garage. My little 4.5"D coil 
was full of dust and debris, so I cleaned it off. I decided to put some 
of the pieces back together (NST was out). Anyway, after the cleanup and 
remounting the NST, I decided to give it a little test run. Nothing! 
Hmm... I remember I had a problem with the Terry Filter that I had yet 
to dig into. So, I unhooked the Terry filter and gave the coil another 
go. ZOOM!! Lot's of great sparks in the 5 foot range.

Unfortunately, I had my garage open. A couple guys working on a house 
across the street showed up. After answering all their questions, I 
decided to run it again for them. Well, you know how that goes. Ran it 
for too long and too high of power. It ran great, they were thrilled. 
But, it all ended right when I decided to shut it down (hand on the 
variac just starting to turn it down). I didn't think much of it, but 
today I decided to check it. The NST is dead for the 3rd time. Looks 
like I'll be melting the wax out (it's filled with wax, so actually an 
easy process at this point).

The Terry filter also includes the safety gap and I ran without it (took 
a risk and got bit). With the Terry filter, I've ran this coil 
non-stopped for 30 minutes without failure at 1.2KW with a static gap. 
This time without the filter, it lasted only 3 minutes.

So, don't forget the Terry filter!

Just a reminder.
Bart
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