RE: [TCML] HV Transformer Winding

["Phil Tuck" <follies@xxxxxxxxxxxx>]

Finn, Bart & others:#
I have wound both secondaries and the primary will get done this weekend. When the varnish is dry (i spotted it on in places to keep the wire from moving) I will try out all the differant combinations to see what you actually get.

Trying to visualise it is hard work


Jay:#
 Yes that's the stuff. Best to try a piece out first using an NST and a Variac. The original insulation paper that was on the transformer when I got it held off about the same voltage, so fingers crossed.


Regards

Phil
www.follytowers.co.uk/tesla

     




-----Original Message-----
From: jhowson4@xxxxxxxxxxx [mailto:jhowson4@xxxxxxxxxxx] 
Sent: 25 April 2009 05:10
To: Tesla Coil Mailing List
Subject: Re: [TCML] HV Transformer Winding

oh that stuff. Probably buy it at staples. right? 
i thought it was some specialized stuff. 

thanks , 
Jay 

----- Original Message ----- 
From: "Phil Tuck" <follies@xxxxxxxxxxxx> 
To: tesla@xxxxxxxxxx 
Sent: Friday, April 24, 2009 7:40:47 PM GMT -05:00 US/Canada Eastern 
Subject: RE: [TCML] HV Transformer Winding 

Jay wrote 

>>>That is a very nice transformer you have there. Did the cores come from a 
Radar transformer? What did you use in between turn layers? 



>>>I also must commend you on your web site. very spiffy. =) 



Hello Jay. 

Yes the transformer was originally from a radar set 8.25 kv, cores are 2 x 1 
inch, giving 8 sq inches for the middle leg. 

I am using brown parcel paper or 'Kraft' paper I think is the other name. 
It's heavy duty (90gsm) about 5 thou thick. When loaded with oil it is 
capable of holding off around 3K from tests that I've done. This is well in 
excess of the voltage pd between layers. 

(Of course that could well be the 'kiss of death' to the project now <grin>) 

Regards 



Phil 

www.follytowers.co.uk/tesla 











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