That would work, or even higher with additional multipliers. I have 10 12KV
350ma oven diodes anyway, but don't have any HV caps at this time. I have a
lead on a microwave oven for free that 'still works' so I'll check that
out, but I'll need to find extra HV caps.
On Mon, Sep 28, 2015 at 7:40 PM, Paula Lange <twoten@xxxxxxxxx> wrote:
> What about two microwave oven transformers with diodes and Voltage
> doubling capacitors? That would give you plus and minus 4kv.
>
> msweeney23@xxxxxxxxx wrote:
>
> >I wish i could but i need both DC polarities :(
> >
> >I know an NST is totally overkill for this but outside of using an old
> fkyback without the built in diode i dont see many options.
> >
> >Some 20 years ago i built this using a flyback from an old tube TV
> running on 12DC but it was just a curiosity and i scrapped it when building
> my first TC (at age 17 with no real knowledge building plate glass
> capacitors - lucky i didnt kill myself).
> >
> >If i could find a cheap +/- HV DC generator id be happy. Could i use a
> single polarity and somehow shift it down so i see a +/- half the voltage?
> >
> >----- Reply message -----
> >From: "David Speck" <Dave@xxxxxxxxxxxxxxxx>
> >To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> >Subject: [TCML] Voltage/power dissapation drop across HV DC current
> limiting resistors.
> >Date: Mon, Sep 28, 2015 11:53 AM
> >
> >Matt,
> >
> >In today's eMail I received an offer from Goldmine Electronics for a 15
> >KV negative ion generator that runs off 12 VDC for $10. It's
> >intrinsically current limited, and you can lift it with two fingers
> >instead of two men and a boy like your NST corona generator.
> >
> >If the polarity is right for your application, then it would be a simple
> >way to go. Special sale price ends 9/30. (No connection to seller, but
> >a frequent buyer).
> >
> >http://www.goldmine-elec-products.com/prodinfo.asp?number=G20855
> >
> >Dave
> >
> >On 9/27/2015 9:51 PM, Matthew Sweeney wrote:
> >> No that is exactly correct. Another user mentioned that I should be
> careful
> >> using NST for VDG seemingly because there could be short down in the
> inside
> >> of the VDG to the HV brush, allowing potentially lethal currents up to
> the
> >> collector. I've not been able to confirm this exact reason - maybe
> someone
> >> else can chime in on this.
> >
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