Re: [TCML] WINDING A FLYBACK

[jhowson4@xxxxxxxxxxx]

My last dealing with information unlimited involved me requesting a quote and them completely blowing me off. Not ideal business practices. 
But yea larger ferrite cores are hard to come by. The best Idea I found when looking into these a few years back was to use a core from TV coiles , Yea sure the shape is bloody weird. But the cross sectional area is decently large, and you have two faces that are easily air gapped with some plastic or whatever. I thought up a way to easily mount them into a lathe type jig gizmo for winding as well. But it would still be a pain in the rear end to actually do. 
I have a tv core sitting here on my desk, if you want it. 
And given a few weeks I am always finding computer monitors and could acquire a few more. 

If you don't like that idea, ferrite bars and rods of a reasonable size. are always on ebay. assemble the rods to be the winding parts and use the bars as end caps to complete the core, Cut and stack as necessary to get the size you want. super glue works quite well for sticking them together. Just make sure to sand rough faces smooth first. and once again some paper or plastic in between one of the bars and rods works well as an air gap. 





Thanks, 
John "Jay" Howson IV 

----- Original Message -----
From: "Scott Bogard" <sdbogard@xxxxxxxxx> 
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> 
Sent: Thursday, November 10, 2011 12:09:57 PM 
Subject: [TCML] WINDING A FLYBACK 

Greetings all, 
Contemplating winding a few flybacks for high power operation (28 awg 
secondary) does anybody have any experience with this, I'm looking to make 
several identical ones for my plasma drivers, what should I use to separate 
the windings, paper, poly, mylar? How may layers can I do? What do I pot 
them in? Google is turning up fairly little information, just wondered if 
anybody on list has tackled this, please note I am aware this will require 
patience... Thanks in advance! Oh and where can I get cores, I've found 
some on information unlimited but I've heard unsavory things about them, 
and am hesitant to order... 

Scott Bogard. 
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