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How do I make my HV chokes?
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From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Tuesday, February 17, 1998 4:18 PM
To: Tesla List
Subject: Re: How do I make my HV chokes?
to: Matt
If running a NST then run a 500-1000 Ohm, 50 watt resistor in series with a
2 inch dia PVC tube on which is wound approx 60-80 turns #18 AWG magnet or
PVC insulated wire. Use this protective system off each bushing. Also a
good idea to have a simple "bent wire" sparkgap near each bushing so
excessive potential can flash over the 3/8 inch gap before frying your NST.
DR.RESONANCE-at-next-wave-dot-net
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> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: How do I make my HV chokes?
> Date: Monday, February 16, 1998 10:30 PM
>
>
> ----------
> From: Matthew Mills [SMTP:mattmills-at-mindless-dot-com]
> Sent: Monday, February 16, 1998 3:10 PM
> To: Tesla List
> Subject: How do I make my HV chokes?
>
> Hi, I have posted this question to this list a number of times but have
> never had a reply. There seems to be no real text out there dealing
> with the chokes for transformer protection.
>
> How do I size these? What matereial do I use? Is a ferrite cored one
> better than an air core?
> What guage/type wire do I use? Can I use a ferrite am aerial rod? Can
> I use the square ferrite from a Flyback? What about iron cored?
>
> I would use large toroidal ferrites if these were available but they are
> not.
>
> Thanks for any replies in advance.
>
> Matt.
>