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Re: SIZE of RF chokes?

Original poster: "JT Bowles" <jasotb@xxxxxxxxxxx>

So, you're saying i can run my transformer at 140VAC in, and as long as my safety gap is set correctly, I dont have to worry about destroying it?

sweet. Except ,it is a linear relationship right? if i increase my input voltage by 1/6 previous voltage,
I should get in increase of 1/6 voltage on the secondary right?

That means if i wire my NST for 140VAC in, 14KVAC comes out, correct?


From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: SIZE of RF chokes?
Date: Thu, 24 Nov 2005 10:38:59 -0700

Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi JT,

Excessively high voltage is what usually kills NSTs. Use LTR cap value to avoid resonant charging and a properly set safety gap to avoid these high voltages. Yes 140Vac will probably shorten the life of an NST to some extent. If you have a properly set safety gap and an LTR cap value, you probably shouldn't worry about this too much as you wont enjoy the hobby as much. I run my 15 KV (21 KVpeak) NST's at 25 KVpeak with a SRSG and haven't lost one yet.

Gerry R.


Original poster: "JT Bowles" <jasotb@xxxxxxxxxxx>

Ok thanks, but i dont know how to do that, except for rewiring my variac to 140 VAC. Any other ways.

**but, wont this further decrease the life of your transformer?


From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: SIZE of RF chokes?
Date: Tue, 22 Nov 2005 12:19:48 -0700

Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi JT,

You can also draw more than the NST's rated "power" at 120Vac input.

Gerry R.